Transposed version of A080955: T(n,k) = A080955(k,n), n>=0, k>=-1.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =2a(9) =2a(10) =1a(11) =3a(12) =5a(13) =6a(14) =9a(15) =1a(16) =4a(17) =10a(18) =16a(19) =24a(20) =44a(21) =1a(22) =5a(23) =17a(24) =38a(25) =65a(26) =120a(27) =265a(28) =1a(29) =6