280600domain: NAppears in sequencesa(n) = Sum_{k=0..7} binomial(n,k).at n=22A008860Number of reachable arrangements of coins in the game Blet starting with 2n coins.at n=9A075273Row sums of A159841.at n=7A160906a(n) = number of subsets of {1,2,...,n} that contain more primes than nonprimes.at n=22A369780