A247169 - cp's OEIS frontend

A247169 G.f. (4x+3)/(2(x+1))(1+1/sqrt(-4x^4-4*x^3+1)).

n	a(n)
0	3
1	1
2	-1
3	4
4	3
5	1
6	8
7	22
8	11
9	31
10	99
11	111
12	144
13	456
14	734
15	904
16	2155
17	4285
18	5921
19	11173
20	23603
21	37489
22	63161
23	129031
24	227072
25	375376
26	719432
27	1335478
28	2264118
29	4126266
30	7759608
31	13613744
32	24219051
33	45127317
34	81256395
35	144053547
36	264457881

[3, 1, -1, 4, 3, 1, 8, 22, 11, 31, 99, 111, 144, 456, 734, 904, 2155, 4285, 5921, 11173, 23603, 37489, 63161, 129031, 227072, 375376, 719432, 1335478, 2264118, 4126266, 7759608, 13613744, 24219051, 45127317, 81256395, 144053547, 264457881]

cp's OEIS Frontend

A247169 G.f. (4x+3)/(2(x+1))(1+1/sqrt(-4x^4-4*x^3+1)).

Table of values

List of values

cp's OEIS Frontend

A247169 G.f. (4*x+3)/(2*(x+1))*(1+1/sqrt(-4*x^4-4*x^3+1)).

Table of values

List of values

A247169 G.f. (4x+3)/(2(x+1))(1+1/sqrt(-4x^4-4*x^3+1)).