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A174627
Partial sums of A002833.
0
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
Cf. A002833.
Sequence in context: A207556 A180875 A136104 * A302147 A007841 A036760
KEYWORD
more,nonn
AUTHOR
Jonathan Vos Post, Mar 24 2010
STATUS
approved