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} (-k)^(n-j) * binomial(n,j) * binomial(n,j-1) for n > 0.
A336727
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} (-k)^(n-j) * binomial(n,j) * binomial(n,j-1) for n > 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =0a(9) =1a(10) =1a(11) =1a(12) =-1a(13) =-1a(14) =1a(15) =1a(16) =1a(17) =-2a(18) =-1a(19) =0a(20) =1a(21) =1a(22) =1a(23) =-3a(24) =1a(25) =5a(26) =2a(27) =1a(28) =1a(29) =1
External references
- oeis: A336727