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A176692
Partial sums of A000617.
0
2, 5, 10, 20, 47, 166, 1279, 30654, 2760820
OFFSET
0,1
COMMENTS
Partial sums of number of NP-equivalence classes of threshold functions of n or fewer variables. The subsequence of primes in this sequence begins: 2, 5, 47, 1279.
FORMULA
a(n) = SUM[i=0..n] A000617(i) = SUM[i=0..n] SUM[j=0..i] A000619(j).
EXAMPLE
a(6) = 2 + 3 + 5 + 10 + 27 + 119 + 1113 = 1279 is prime.
CROSSREFS
Sequence in context: A129847 A330456 A352120 * A212951 A051109 A124146
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Apr 24 2010
STATUS
approved