Triangle read by rows, T(n,k) = Sum_{j=0..n-k+1} j!*C(n-1,j-1)*T(n-j,k-1) if k != 0 else 1, n>=0, 0<=k<=n.
A256895
Triangle read by rows, T(n,k) = Sum_{j=0..n-k+1} j!*C(n-1,j-1)*T(n-j,k-1) if k != 0 else 1, n>=0, 0<=k<=n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =11a(8) =7a(9) =1a(10) =1a(11) =49a(12) =47a(13) =13a(14) =1a(15) =1a(16) =261a(17) =341a(18) =139a(19) =21a(20) =1a(21) =1a(22) =1631a(23) =2731a(24) =1471a(25) =329a(26) =31a(27) =1a(28) =1a(29) =11743
External references
- oeis: A256895