The On-Line Encyclopedia of Integer Sequences (OEIS)

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Partial sums of A002833.
(history; published version)

#2 by Russ Cox at Fri Mar 30 18:40:51 EDT 2012

AUTHOR

_Jonathan Vos Post (jvospost3(AT)gmail.com), _, Mar 24 2010

Discussion

Fri Mar 30

18:40

OEIS Server: https://oeis.org/edit/global/228

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

Partial sums of A002833.

DATA

0, 1, 3, 11, 55, 545, 14619, 1363847

OFFSET

0,3

COMMENTS

Partial sums of threshold functions of n variables. The subsequence of primes in this partial sum begins: 3, 11, 1363847.

FORMULA

a(n) = SUM[i=0..n] A002833(i).

EXAMPLE

a(7) = 0 + 1 + 2 + 8 + 44 + 490 + 14074 + 1349228 = 1363847 is prime.

CROSSREFS

KEYWORD

more,nonn

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 24 2010

STATUS

approved