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Showing entries 1-10 | older changes
Denominators of coefficients of Green function for cubic lattice.
(history; published version)
#16 by Jon E. Schoenfield at Sun Aug 06 22:47:38 EDT 2017
STATUS

editing

approved

#15 by Jon E. Schoenfield at Sun Aug 06 22:47:36 EDT 2017
FORMULA

9(n+1)(2n+1)(2n+3)A003301(n+1)/a(n+1)-2(2n+1)(10n^2+10n+3)A003301(n)/a(n)+4n^3A003301(n-1)/a(n-1) = 0 . - R. J. Mathar, Dec 08 2005

MAPLE

Dnminus1 := 1 : print(denom(Dnminus1)) ; Dn := 2/9 : print(denom(Dn)) ; for nplus1 from 2 to 20 do n := nplus1-1 : Dnplus1 := (2*(2*n+1)*(10*n^2+10*n+3)*Dn-4*n^3*Dnminus1)/(9*nplus1*(2*n+1)*(2*n+3)) : print(denom(Dnplus1)) ; Dnminus1 := Dn : Dn := Dnplus1 : od : (# _R. J. Mathar)_

AUTHOR
STATUS

approved

editing

#14 by Russ Cox at Fri Mar 30 17:38:25 EDT 2012
FORMULA

9(n+1)(2n+1)(2n+3)A003301(n+1)/a(n+1)-2(2n+1)(10n^2+10n+3)A003301(n)/a(n)+4n^3A003301(n-1)/a(n-1)=0 - _R. J. Mathar (mathar(AT)strw.leidenuniv.nl), _, Dec 08 2005

EXTENSIONS

More terms from _R. J. Mathar (mathar(AT)strw.leidenuniv.nl), _, Dec 08 2005

Discussion
Fri Mar 30
17:38
OEIS Server: https://oeis.org/edit/global/190
#13 by Russ Cox at Fri Mar 30 16:43:46 EDT 2012
AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com)_.

Discussion
Fri Mar 30
16:43
OEIS Server: https://oeis.org/edit/global/110
#12 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010
REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

KEYWORD

nonn,easy,frac,new

#11 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009
KEYWORD

nonn,easy,frac,new

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

#10 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008
FORMULA

9(n+1)(2n+1)(2n+3)A003301(n+1)/a(n+1)-2(2n+1)(10n^2+10n+3)A003301(n)/a(n)+4n^3A003301(n-1)/a(n-1)=0 - Richard R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 08 2005

KEYWORD

nonn,easy,frac,new

EXTENSIONS

More terms from Richard R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 08 2005

#9 by N. J. A. Sloane at Tue Jan 24 03:00:00 EST 2006
DATA

1, 9, 81, 8505, 229635, 413343, 531972441, 227988189, 3419822835, 29824274944035, 375785864294841, 307461161695779, 1116569481947829, 660923243352964935, 849758455739526345, 6875395665388507657395

FORMULA

9(n+1)(2n+1)(2n+3)A003301(n+1)/a(n+1)-2(2n+1)(10n^2+10n+3)A003301(n)/a(n)+4n^3A003301(n-1)/a(n-1)=0 - Richard J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 08 2005

MAPLE

Dnminus1 := 1 : print(denom(Dnminus1)) ; Dn := 2/9 : print(denom(Dn)) ; for nplus1 from 2 to 20 do n := nplus1-1 : Dnplus1 := (2*(2*n+1)*(10*n^2+10*n+3)*Dn-4*n^3*Dnminus1)/(9*nplus1*(2*n+1)*(2*n+3)) : print(denom(Dnplus1)) ; Dnminus1 := Dn : Dn := Dnplus1 : od : (Mathar)

KEYWORD

nonn,easy,more,frac,new

EXTENSIONS

More terms from Richard J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 08 2005

#8 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003
REFERENCES

G . S . Joyce, The simple cubic lattice Green function, Phil. Trans. Roy. Soc., 273 (1972), 583-610.

KEYWORD

nonn,easy,more,frac,new

#7 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999
NAME

Coefficients Denominators of coefficients of Green function for cubic lattice.

REFERENCES

PTRS G S Joyce, The simple cubic lattice Green function, Phil. Trans. Roy. Soc., 273 593 73(1972), 583-610.

CROSSREFS

Cf. A003301.

KEYWORD

,newnonn,easy,more,frac