A171145 - cp's OEIS frontend

A171145 The sequence of coefficients of a polynomial recursion: p(x,n)=If[Mod[n, 2] == 0, (x + 1)p(x, n - 1), (x^2 + nx + 1)^Floor[n/2]].

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	4
9	4
10	1
11	1
12	10
13	27
14	10
15	1
16	1
17	11
18	37
19	37
20	11
21	1
22	1
23	21
24	150
25	385
26	150
27	21
28	1
29	1
30	22
31	171
32	535
33	535
34	171
35	22
36	1
37	1
38	36
39	490
40	3024
41	7539
42	3024
43	490
44	36
45	1
46	1
47	37
48	526
49	3514
50	10563
51	10563
52	3514
53	526
54	37
55	1
56	1
57	55
58	1215
59	13530
60	76845
61	188001
62	76845

[1, 1, 1, 1, 3, 1, 1, 4, 4, 1, 1, 10, 27, 10, 1, 1, 11, 37, 37, 11, 1, 1, 21, 150, 385, 150, 21, 1, 1, 22, 171, 535, 535, 171, 22, 1, 1, 36, 490, 3024, 7539, 3024, 490, 36, 1, 1, 37, 526, 3514, 10563, 10563, 3514, 526, 37, 1, 1, 55, 1215, 13530, 76845, 188001, 76845]

cp's OEIS Frontend

A171145 The sequence of coefficients of a polynomial recursion: p(x,n)=If[Mod[n, 2] == 0, (x + 1)p(x, n - 1), (x^2 + nx + 1)^Floor[n/2]].

Table of values

List of values

cp's OEIS Frontend

A171145 The sequence of coefficients of a polynomial recursion: p(x,n)=If[Mod[n, 2] == 0, (x + 1)*p(x, n - 1), (x^2 + n*x + 1)^Floor[n/2]].

Table of values

List of values

A171145 The sequence of coefficients of a polynomial recursion: p(x,n)=If[Mod[n, 2] == 0, (x + 1)p(x, n - 1), (x^2 + nx + 1)^Floor[n/2]].