A360775 - cp's OEIS frontend

A360775 Expansion of Sum_{k>=0} (x * (k + x^2))^k.

n	a(n)
0	1
1	1
2	4
3	28
4	260
5	3152
6	46913
7	826677
8	16823968
9	388245283
10	10016796672
11	285699444297
12	8926107792609
13	303160590533808
14	11120927427841820
15	438196895219227683
16	18457860168281435172
17	827678295600605015006
18	39364859979651634985089

[1, 1, 4, 28, 260, 3152, 46913, 826677, 16823968, 388245283, 10016796672, 285699444297, 8926107792609, 303160590533808, 11120927427841820, 438196895219227683, 18457860168281435172, 827678295600605015006, 39364859979651634985089]

cp's OEIS Frontend

A360775 Expansion of Sum_{k>=0} (x * (k + x^2))^k.

Table of values

List of values