Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(n,k) is the constant term in the expansion of (1 + x_1 + x_2 + ... + x_n + 1/x_1 + 1/x_2 + ... + 1/x_n)^k.
A328718
Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(n,k) is the constant term in the expansion of (1 + x_1 + x_2 + ... + x_n + 1/x_1 + 1/x_2 + ... + 1/x_n)^k.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =3a(8) =1a(9) =1a(10) =1a(11) =7a(12) =5a(13) =1a(14) =1a(15) =1a(16) =19a(17) =13a(18) =7a(19) =1a(20) =1a(21) =1a(22) =51a(23) =61a(24) =19a(25) =9a(26) =1a(27) =1a(28) =1a(29) =141
External references
- oeis: A328718