961350domain: NAppears in sequencesa(n) = (2^n/n!) * Product_{k=0..n-1} (4*k + 1).at n=8A004981Array of T(n,m)=1*5*...*(4n-3)*3*7*...*(4m-1)*2^(n+m)/(n+m)! by antidiagonals.at n=36A122882Expansion of Hypergeometric function F(17/12, 13/12; 3; 1728*x) in powers of x.at n=2A318200