Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of g.f. ((1-x)^(k-4))/((1-x)^k+x^k).
A307394
Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of g.f. ((1-x)^(k-4))/((1-x)^k+x^k).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =4a(5) =6a(6) =1a(7) =4a(8) =9a(9) =10a(10) =1a(11) =4a(12) =10a(13) =14a(14) =15a(15) =1a(16) =4a(17) =10a(18) =19a(19) =15a(20) =21a(21) =1a(22) =4a(23) =10a(24) =20a(25) =28a(26) =8a(27) =28a(28) =1a(29) =4
External references
- oeis: A307394