A143080 - cp's OEIS frontend

A143080 Triangular sequence of coefficients from an exponential based polynomial: p(x,n)=If[n == 0, 1, -(2n - 1)!x^(2n)(Sum[x^i/(i + 2n)!, {i, 0, Infinity}] - Exp[x]/x^(2n))].

n	a(n)
1	1
2	1
3	1
4	6
5	6
6	3
7	1
8	120
9	120
10	60
11	20
12	5
13	1
14	5040
15	5040
16	2520
17	840
18	210
19	42
20	7
21	1
22	362880
23	362880
24	181440
25	60480
26	15120
27	3024
28	504
29	72
30	9
31	1
32	39916800
33	39916800
34	19958400
35	6652800
36	1663200
37	332640
38	55440
39	7920
40	990
41	110
42	11
43	1
44	6227020800
45	6227020800

[1, 1, 1, 6, 6, 3, 1, 120, 120, 60, 20, 5, 1, 5040, 5040, 2520, 840, 210, 42, 7, 1, 362880, 362880, 181440, 60480, 15120, 3024, 504, 72, 9, 1, 39916800, 39916800, 19958400, 6652800, 1663200, 332640, 55440, 7920, 990, 110, 11, 1, 6227020800, 6227020800]

cp's OEIS Frontend

A143080 Triangular sequence of coefficients from an exponential based polynomial: p(x,n)=If[n == 0, 1, -(2n - 1)!x^(2n)(Sum[x^i/(i + 2n)!, {i, 0, Infinity}] - Exp[x]/x^(2n))].

Table of values

List of values

cp's OEIS Frontend

A143080 Triangular sequence of coefficients from an exponential based polynomial: p(x,n)=If[n == 0, 1, -(2*n - 1)!*x^(2*n)*(Sum[x^i/(i + 2*n)!, {i, 0, Infinity}] - Exp[x]/x^(2*n))].

Table of values

List of values

A143080 Triangular sequence of coefficients from an exponential based polynomial: p(x,n)=If[n == 0, 1, -(2n - 1)!x^(2n)(Sum[x^i/(i + 2n)!, {i, 0, Infinity}] - Exp[x]/x^(2n))].