Triangular array, T(n,k) = s(n,k) + s(n,n-k), where s(n,k) are the Stirling numbers of the first kind.
A154843
Triangular array, T(n,k) = s(n,k) + s(n,n-k), where s(n,k) are the Stirling numbers of the first kind.
Terms
- a(0) =2a(1) =1a(2) =1a(3) =1a(4) =-2a(5) =1a(6) =1a(7) =-1a(8) =-1a(9) =1a(10) =1a(11) =-12a(12) =22a(13) =-12a(14) =1a(15) =1a(16) =14a(17) =-15a(18) =-15a(19) =14a(20) =1a(21) =1a(22) =-135a(23) =359a(24) =-450a(25) =359a(26) =-135a(27) =1a(28) =1a(29) =699
External references
- oeis: A154843