157192domain: NAppears in sequencesFibonacci sequence beginning 2, 22.at n=20A022373a(n) = 2*Sum_{k=0..n-1} C(n-1,k)*C(n+k,k) + n.at n=8A236407Number of n X 2 0..1 arrays with no 1 adjacent to 4 king-move neighboring 1s.at n=8A297096