Triangle read by rows. T(n,k) = Sum_{j=0..k} binomial(k-j+2, 2)*T(n-1, j), for n>=0, 0<=k<=n, with T(0,0)=1 and T(n,n)=0 for n>0.
A339350
Triangle read by rows. T(n,k) = Sum_{j=0..k} binomial(k-j+2, 2)*T(n-1, j), for n>=0, 0<=k<=n, with T(0,0)=1 and T(n,n)=0 for n>0.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =3a(5) =0a(6) =1a(7) =6a(8) =15a(9) =0a(10) =1a(11) =9a(12) =39a(13) =91a(14) =0a(15) =1a(16) =12a(17) =72a(18) =272a(19) =612a(20) =0a(21) =1a(22) =15a(23) =114a(24) =570a(25) =1995a(26) =4389a(27) =0a(28) =1a(29) =18
External references
- oeis: A339350