16489546domain: NAppears in sequencesa(n) = Sum_{k=0..9} binomial(n,k).at n=29A008862a(n) = number of subsets of {1,2,...,n} that contain more primes than nonprimes.at n=29A369780a(n) = Sum_{k=0..n} binomial(3*n+2,k).at n=9A387007