A155454 Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, -4, -4, 1, 1, 1, 1, -22, -24, -22, 1, 1, 1, 1, -118, -114, -114, -118, 1, 1, 1, 1, -718, -594, -528, -594, -718, 1, 1, 1, 1, -5038, -3594, -2736, -2736, -3594, -5038, 1, 1, 1, 1, -40318, -25194, -16536, -14160
Offset: 0
Examples
1; 1, 1; 1, 1, 1; 1, 1, 1, 1; 1, 1, 0, 1, 1; 1, 1, -4, -4, 1, 1; 1, 1, -22, -24, -22, 1, 1; 1, 1, -118, -114, -114, -118, 1, 1; 1, 1, -718, -594, -528, -594, -718, 1, 1; 1, 1, -5038, -3594, -2736, -2736, -3594, -5038, 1, 1; 1, 1, -40318, -25194, -16536, -14160, -16536, -25194, -40318, 1, 1;
Programs
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Mathematica
Table[Table[(k! + (-k + n)! - k!*(n - k)!), {k, 0, n}], {n, 0, 10}]; Flatten[%]
Comments