Triangle: Newton expansion of C(n,m)^3, read by rows.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =6a(5) =1a(6) =0a(7) =6a(8) =24a(9) =1a(10) =0a(11) =0a(12) =114a(13) =60a(14) =1a(15) =0a(16) =0a(17) =180a(18) =690a(19) =120a(20) =1a(21) =0a(22) =0a(23) =90a(24) =2940a(25) =2640a(26) =210a(27) =1a(28) =0a(29) =0