The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A050067

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A050067

a(n)=a(n-1)+a(m), where m=2n-2-2^(p+1) and 2^p<n-1<=2^(p+1), for n >= 4.
(history; published version)

#9 by Bruno Berselli at Mon Sep 07 08:16:48 EDT 2015

STATUS

reviewed

approved

#8 by Joerg Arndt at Mon Sep 07 06:37:02 EDT 2015

STATUS

proposed

reviewed

#7 by Ivan Neretin at Mon Sep 07 06:32:44 EDT 2015

STATUS

editing

proposed

#6 by Ivan Neretin at Mon Sep 07 06:32:06 EDT 2015

LINKS

Ivan Neretin, <a href="/A050067/b050067.txt">Table of n, a(n) for n = 1..8193</a>

MATHEMATICA

Fold[Append[#1, #1[[-1]] + #1[[#2]]] &, {1, 3, 3}, Flatten@Table[2 k, {n, 5}, {k, 2^n}]] (* Ivan Neretin, Sep 07 2015 *)

CROSSREFS

Cf. A050027, A050031, A050035, A050039, A050043, A050047, A050051, A050055, A050059, A050063, A050071 (similar, but with different initial conditions).

STATUS

approved

editing

#5 by Russ Cox at Fri Mar 30 18:57:00 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:57

OEIS Server: https://oeis.org/edit/global/285

#4 by N. J. A. Sloane at Fri Feb 24 03:00:00 EST 2006

NAME

a(n)=a(n-1)+a(m), where m=2n-2-2^(p+1), and 2^p<n-1<=2^(p+1), for n >= 4.

KEYWORD

nonn,new

nonn

#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, (ck6(AT)evansville.edu)

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

NAME

a(n)=a(n-1)+a(m), where m=2n-2-2^(p+1), and 2^p<n-1<=2^(p+1), for n >= 4.

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, ck6@cedar.(AT)evansville.edu

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

NAME

a(n)=a(n-1)+a(m), where m=2n-2-2^(p+1), and 2^p<n-1<=2^(p+1), for n>=4.

DATA

1, 3, 3, 6, 12, 15, 21, 36, 72, 75, 81, 96, 132, 207, 303, 510, 1020, 1023, 1029, 1044, 1080, 1155, 1251, 1458, 1968, 2991, 4035, 5190, 6648, 9639, 14829, 24468, 48936, 48939, 48945, 48960, 48996, 49071, 49167, 49374, 49884

OFFSET

1,2

KEYWORD

nonn

AUTHOR

Clark Kimberling, [email protected]

STATUS

approved