A192346 - cp's OEIS frontend

A192346 Constant term of the reduction (by x^2->x+1) of polynomial p(n,x) identified in Comments.

n	a(n)
1	1
2	0
3	3
4	4
5	25
6	68
7	275
8	904
9	3297
10	11400
11	40499
12	141900
13	500697
14	1760396
15	6200675
16	21820432
17	76823425
18	270407696
19	951914403
20	3350807700
21	11795463001
22	41521535700
23	146162319603
24	514512119704
25	1811159622625
26	6375545788568
27	22442862753875

[1, 0, 3, 4, 25, 68, 275, 904, 3297, 11400, 40499, 141900, 500697, 1760396, 6200675, 21820432, 76823425, 270407696, 951914403, 3350807700, 11795463001, 41521535700, 146162319603, 514512119704, 1811159622625, 6375545788568, 22442862753875]

cp's OEIS Frontend

A192346 Constant term of the reduction (by x^2->x+1) of polynomial p(n,x) identified in Comments.

Table of values

List of values