Triangle read by rows, T(n,k) = Sum_{j=0..n} (-1)^(n-j)*C(-j,-n)*S1(k,j), S1 the Stirling cycle numbers A132393, for n>=0 and 0<=k<=n.
A271699
Triangle read by rows, T(n,k) = Sum_{j=0..n} (-1)^(n-j)*C(-j,-n)*S1(k,j), S1 the Stirling cycle numbers A132393, for n>=0 and 0<=k<=n.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =2a(6) =0a(7) =1a(8) =3a(9) =9a(10) =0a(11) =1a(12) =4a(13) =14a(14) =58a(15) =0a(16) =1a(17) =5a(18) =20a(19) =90a(20) =475a(21) =0a(22) =1a(23) =6a(24) =27a(25) =131a(26) =729a(27) =4666a(28) =0a(29) =1
External references
- oeis: A271699