Triangle T(n,k) read by rows ; multiply row n of Pascal's triangle (A007318) by A024175(n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =2a(6) =5a(7) =15a(8) =15a(9) =5a(10) =14a(11) =56a(12) =84a(13) =56a(14) =14a(15) =42a(16) =210a(17) =420a(18) =420a(19) =210a(20) =42a(21) =132a(22) =792a(23) =1980a(24) =2640a(25) =1980a(26) =792a(27) =132a(28) =428a(29) =2996