2533987domain: NAppears in sequencesa(n) = Sum_{k=0..8} binomial(n,k).at n=26A008861Number of reachable arrangements of coins in the game Blet starting with 2n coins.at n=11A075273a(n) = number of subsets of {1,2,...,n} that contain more primes than nonprimes.at n=26A369780a(n) = Sum_{k=0..n} binomial(3*n+2,k).at n=8A387007