Triangle T(n,m) = binomial(4*n, 4*m), 0 <= m <= n, read by rows.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =70a(5) =1a(6) =1a(7) =495a(8) =495a(9) =1a(10) =1a(11) =1820a(12) =12870a(13) =1820a(14) =1a(15) =1a(16) =4845a(17) =125970a(18) =125970a(19) =4845a(20) =1a(21) =1a(22) =10626a(23) =735471a(24) =2704156a(25) =735471a(26) =10626a(27) =1a(28) =1a(29) =20475