The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A073610

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A073610

Number of primes of the form n-p where p is a prime.
(history; published version)

#25 by Alois P. Heinz at Sun May 10 15:49:31 EDT 2020

STATUS

editing

approved

#24 by Alois P. Heinz at Sun May 10 15:49:28 EDT 2020

FORMULA

Convolution Self-convolution of characteristic function of "a(n)=1 if n prime, 0 otherwise" primes (A010051) with itself. - Graeme McRae, Jul 18 2006

STATUS

approved

editing

#23 by Charles R Greathouse IV at Wed Jan 21 08:52:02 EST 2015

STATUS

editing

approved

#22 by Charles R Greathouse IV at Wed Jan 21 08:51:59 EST 2015

PROG

(PARI) Vec(sum(i=1, 100, x^prime(i), O(x^prime(101)))^2) \\ Charles R Greathouse IV, Jan 21 2015

CROSSREFS

Cf. A061358, A065577, A107318., A098238

Cf. A098238

STATUS

approved

editing

#21 by N. J. A. Sloane at Thu Dec 05 19:55:22 EST 2013

AUTHOR

_Amarnath Murthy (amarnath_murthy(AT)yahoo.com), _, Aug 05 2002

Discussion

Thu Dec 05

19:55

OEIS Server: https://oeis.org/edit/global/2075

#20 by R. J. Mathar at Fri Jun 14 03:45:25 EDT 2013

STATUS

editing

approved

#19 by R. J. Mathar at Fri Jun 14 03:45:21 EDT 2013

EXTENSIONS

Corrected and extended by _Vladeta Jovovic (vladeta(AT)eunet.rs) _ and Sascha Kurz, Aug 06 2002

STATUS

approved

editing

#18 by Charles R Greathouse IV at Fri May 10 12:45:04 EDT 2013

FORMULA

G.f.: (Sum_{k>0} x^prime(k))^2. - _Vladeta Jovovic (vladeta(AT)eunet.rs), _, Mar 12 2005

Discussion

Fri May 10

12:45

OEIS Server: https://oeis.org/edit/global/1911

#17 by Joerg Arndt at Fri Nov 23 14:07:09 EST 2012

STATUS

proposed

approved

#16 by Geoffrey Critzer at Thu Nov 22 17:00:30 EST 2012

STATUS

editing

proposed