274068969337domain: NAppears in sequencesDiagonal sums of the triangle A190152.at n=24A190154a(n) = Sum_{k=0..floor(n/2)} binomial(n+4*k,n-2*k).at n=24A373904a(n) = Sum_{k=0..floor(2*n/3)} binomial(4*n-4*k,2*k).at n=18A375308