Triangle read by rows, T(n,k) = Sum_{j=0..n} (-1)^(n-j)*C(-j,-n)*L(j,k), L the unsigned Lah numbers A271703, for n>=0 and 0<=k<=n.
A271704
Triangle read by rows, T(n,k) = Sum_{j=0..n} (-1)^(n-j)*C(-j,-n)*L(j,k), L the unsigned Lah numbers A271703, for n>=0 and 0<=k<=n.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =3a(5) =1a(6) =0a(7) =11a(8) =8a(9) =1a(10) =0a(11) =49a(12) =57a(13) =15a(14) =1a(15) =0a(16) =261a(17) =424a(18) =174a(19) =24a(20) =1a(21) =0a(22) =1631a(23) =3425a(24) =1930a(25) =410a(26) =35a(27) =1a(28) =0a(29) =11743
External references
- oeis: A271704