A375026 - cp's OEIS frontend

A375026 a(n) = [x^n] 2/(3sqrt(4x^2 + 1) + 6*x - 1). Alternating row sums of A375025.

n	a(n)
0	1
1	-3
2	6
3	-9
4	12
5	-18
6	30
7	-45
8	60
9	-90
10	156
11	-234
12	288
13	-432
14	846
15	-1269
16	1260
17	-1890
18	4980
19	-7470
20	3912
21	-5868
22	33996
23	-50994
24	-11688
25	17532
26	285720
27	-428580
28	-471480
29	707220
30	2950830
31	-4426245
32	-7902900
33	11854350
34	35254980
35	-52882470
36	-115143480
37	172715220
38	457385220

[1, -3, 6, -9, 12, -18, 30, -45, 60, -90, 156, -234, 288, -432, 846, -1269, 1260, -1890, 4980, -7470, 3912, -5868, 33996, -50994, -11688, 17532, 285720, -428580, -471480, 707220, 2950830, -4426245, -7902900, 11854350, 35254980, -52882470, -115143480, 172715220, 457385220]

cp's OEIS Frontend

A375026 a(n) = [x^n] 2/(3sqrt(4x^2 + 1) + 6*x - 1). Alternating row sums of A375025.

Table of values

List of values

cp's OEIS Frontend

A375026 a(n) = [x^n] 2/(3*sqrt(4*x^2 + 1) + 6*x - 1). Alternating row sums of A375025.

Table of values

List of values

A375026 a(n) = [x^n] 2/(3sqrt(4x^2 + 1) + 6*x - 1). Alternating row sums of A375025.