Triangle read by rows, A084938 * A165489 diagonalized as an infinite lower triangular matrix.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =2a(8) =2a(9) =2a(10) =0a(11) =6a(12) =5a(13) =6a(14) =6a(15) =0a(16) =24a(17) =16a(18) =18a(19) =24a(20) =23a(21) =0a(22) =120a(23) =64a(24) =62a(25) =84a(26) =115a(27) =105a(28) =0a(29) =720