51560

Appears in sequences

• a(n) = p(1)p(n) + p(2)p(n-1) + ... + p(k)p(n+1-k), where k = [ (n+1)/2 ], p = A000040 = the primes.at n=36A024697
• Number of integer partitions of n with reverse-alternating sum < 0.at n=46A344608
• Number of integer partitions of 2n with reverse-alternating sum < 0.at n=23A344743