Regular triangle, T(n, k) = f(n, k) - f(n, 0) + 1, where f(n, k) = Sum_{j=0..k} StirlingS1(n, n-j)*binomial(n,j) + Sum_{j=0..n-k} StirlingS1(n, n-j)*binomial(n, j), read by rows.

A176155

Regular triangle, T(n, k) = f(n, k) - f(n, 0) + 1, where f(n, k) = Sum_{j=0..k} StirlingS1(n, n-j)*binomial(n,j) + Sum_{j=0..n-k} StirlingS1(n, n-j)*binomial(n, j), read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-1a(5) =1a(6) =1a(7) =-8a(8) =-8a(9) =1a(10) =1a(11) =-23a(12) =67a(13) =-23a(14) =1a(15) =1a(16) =-49a(17) =181a(18) =181a(19) =-49a(20) =1a(21) =1a(22) =-89a(23) =1906a(24) =-6704a(25) =1906a(26) =-89a(27) =1a(28) =1a(29) =-146

External references