A192351 - cp's OEIS frontend

A192351 Coefficient of x in the reduction (by x^2->x+1) of polynomial p(n,x) identified in Comments.

n	a(n)
0	0
1	1
2	2
3	20
4	56
5	320
6	1120
7	5312
8	20608
9	90880
10	368640
11	1577984
12	6522880
13	27578368
14	114909184
15	483328000
16	2020573184
17	8480555008
18	35502817280
19	148874461184
20	623609118720
21	2614000353280
22	10952269365248
23	45901678641152
24	192340840939520

[0, 1, 2, 20, 56, 320, 1120, 5312, 20608, 90880, 368640, 1577984, 6522880, 27578368, 114909184, 483328000, 2020573184, 8480555008, 35502817280, 148874461184, 623609118720, 2614000353280, 10952269365248, 45901678641152, 192340840939520]

cp's OEIS Frontend

A192351 Coefficient of x in the reduction (by x^2->x+1) of polynomial p(n,x) identified in Comments.

Table of values

List of values