Triangle read by rows: T(n,k) = n^3*k^3*(n+k)^2, n>=1, 1 <= k <= n.

Terms

a(0) =4a(1) =72a(2) =1024a(3) =432a(4) =5400a(5) =26244a(6) =1600a(7) =18432a(8) =84672a(9) =262144a(10) =4500a(11) =49000a(12) =216000a(13) =648000a(14) =1562500a(15) =10584a(16) =110592a(17) =472392a(18) =1382400a(19) =3267000a(20) =6718464a(21) =21952a(22) =222264a(23) =926100a(24) =2656192a(25) =6174000a(26) =12520872a(27) =23059204a(28) =41472a(29) =409600