411510

Appears in sequences

• Triangle, read by rows, where column k of T = column 0 of matrix power T^{(k+1)(k+2)/2} for k>=0, with T(n,0)=1 for n>=0.at n=40A134523
• a(n) = n*(n + 7)*(n + 14)*(n + 21)*(n + 28)/120.at n=22A264449