Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * Sum_{j=1..n} 2^(n-j) * binomial(n,j) * binomial(n+(k-1)*j,j-1) for n > 0.
A336707
Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * Sum_{j=1..n} 2^(n-j) * binomial(n,j) * binomial(n+(k-1)*j,j-1) for n > 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =1a(7) =1a(8) =3a(9) =6a(10) =1a(11) =1a(12) =4a(13) =11a(14) =20a(15) =1a(16) =1a(17) =5a(18) =19a(19) =45a(20) =72a(21) =1a(22) =1a(23) =6a(24) =30a(25) =100a(26) =197a(27) =272a(28) =1a(29) =1
External references
- oeis: A336707