Triangle T(n,k) = binomial(n,k)^4 read by rows, 0<=k<=n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =16a(5) =1a(6) =1a(7) =81a(8) =81a(9) =1a(10) =1a(11) =256a(12) =1296a(13) =256a(14) =1a(15) =1a(16) =625a(17) =10000a(18) =10000a(19) =625a(20) =1a(21) =1a(22) =1296a(23) =50625a(24) =160000a(25) =50625a(26) =1296a(27) =1a(28) =1a(29) =2401