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, Mar 24 2010
STATUS
approved