Triangle read by rows: a(n, m) = S1(n, m)*3^(n-m), where S1 are the signed Stirling numbers of first kind A008275 (n >= 1, 1 <= m <= n).
A051141
Triangle read by rows: a(n, m) = S1(n, m)*3^(n-m), where S1 are the signed Stirling numbers of first kind A008275 (n >= 1, 1 <= m <= n).
Terms
- a(0) =1a(1) =-3a(2) =1a(3) =18a(4) =-9a(5) =1a(6) =-162a(7) =99a(8) =-18a(9) =1a(10) =1944a(11) =-1350a(12) =315a(13) =-30a(14) =1a(15) =-29160a(16) =22194a(17) =-6075a(18) =765a(19) =-45a(20) =1a(21) =524880a(22) =-428652a(23) =131544a(24) =-19845a(25) =1575a(26) =-63a(27) =1a(28) =-11022480a(29) =9526572
External references
- oeis: A051141