Square array A(n,k) = A326128(A388981(n, k)), read by descending antidiagonals.

Terms

a(0) =9a(1) =16a(2) =40a(3) =15a(4) =72a(5) =168a(6) =21a(7) =56a(8) =240a(9) =528a(10) =33a(11) =88a(12) =264a(13) =840a(14) =1560a(15) =45a(16) =104a(17) =312a(18) =624a(19) =1848a(20) =2856a(21) =48a(22) =400a(23) =408a(24) =816a(25) =2040a(26) =3744a(27) =5472a(28) =39a(29) =144