150676186domain: NAppears in sequencesa(n) = Sum_{k=0..10} binomial(n,k).at n=33A008863a(n) = number of subsets of {1,2,...,n} that contain more primes than nonprimes.at n=33A369780a(n) = Sum_{k=0..n} binomial(3*n+3,k).at n=10A387008