A370143 - cp's OEIS frontend

A370143 Expansion of g.f. A(x) satisfying Sum_{n>=0} Product_{k=1..n} (x^k + 3A(x)) = 1 + 4Sum_{n>=1} x^(n*(n+1)/2).

n	a(n)
1	1
2	-4
3	16
4	-64
5	252
6	-980
7	3752
8	-14076
9	51384
10	-180488
11	597812
12	-1788936
13	4284828
14	-3665376
15	-47694524
16	475585724
17	-3186717720
18	18465627936
19	-98993741736
20	504886869432
21	-2484393916472
22	11887606679816
23	-55566604265244
24	254411449305096
25	-1142492183274444
26	5033985939170544

[1, -4, 16, -64, 252, -980, 3752, -14076, 51384, -180488, 597812, -1788936, 4284828, -3665376, -47694524, 475585724, -3186717720, 18465627936, -98993741736, 504886869432, -2484393916472, 11887606679816, -55566604265244, 254411449305096, -1142492183274444, 5033985939170544]

cp's OEIS Frontend

A370143 Expansion of g.f. A(x) satisfying Sum_{n>=0} Product_{k=1..n} (x^k + 3A(x)) = 1 + 4Sum_{n>=1} x^(n*(n+1)/2).

Table of values

List of values

cp's OEIS Frontend

A370143 Expansion of g.f. A(x) satisfying Sum_{n>=0} Product_{k=1..n} (x^k + 3*A(x)) = 1 + 4*Sum_{n>=1} x^(n*(n+1)/2).

Table of values

List of values

A370143 Expansion of g.f. A(x) satisfying Sum_{n>=0} Product_{k=1..n} (x^k + 3A(x)) = 1 + 4Sum_{n>=1} x^(n*(n+1)/2).