31089domain: NAppears in sequencesa(n) = p(1)p(n) + p(2)p(n-1) + ... + p(k)p(n-k+1), where k = [ n/2 ], p = A000040, the primes.at n=32A025129Numbers n such that 115*2^n-1 is prime.at n=23A050583Number of integer partitions of n whose product of parts is >= n.at n=39A319005