Triangular array: (1/2)*A193851.

Terms

a(0) =1a(1) =4a(2) =2a(3) =13a(4) =10a(5) =4a(6) =40a(7) =36a(8) =24a(9) =8a(10) =121a(11) =116a(12) =96a(13) =56a(14) =16a(15) =364a(16) =358a(17) =328a(18) =248a(19) =128a(20) =32a(21) =1093a(22) =1086a(23) =1044a(24) =904a(25) =624a(26) =288a(27) =64a(28) =3280a(29) =3272