A172285 - cp's OEIS frontend

A172285 a(n) = (52^n - 5(-1)^n - 3n(-1)^n) / 9.

n	a(n)
0	0
1	2
2	1
3	6
4	7
5	20
6	33
7	74
8	139
9	288
10	565
11	1142
12	2271
13	4556
14	9097
15	18210
16	36403
17	72824
18	145629
19	291278
20	582535
21	1165092
22	2330161
23	4660346
24	9320667
25	18641360
26	37282693
27	74565414
28	149130799
29	298261628
30	596523225
31	1193046482
32	2386092931
33	4772185896

[0, 2, 1, 6, 7, 20, 33, 74, 139, 288, 565, 1142, 2271, 4556, 9097, 18210, 36403, 72824, 145629, 291278, 582535, 1165092, 2330161, 4660346, 9320667, 18641360, 37282693, 74565414, 149130799, 298261628, 596523225, 1193046482, 2386092931, 4772185896]

cp's OEIS Frontend

A172285 a(n) = (52^n - 5(-1)^n - 3n(-1)^n) / 9.

Table of values

List of values

cp's OEIS Frontend

A172285 a(n) = (5*2^n - 5*(-1)^n - 3*n*(-1)^n) / 9.

Table of values

List of values

A172285 a(n) = (52^n - 5(-1)^n - 3n(-1)^n) / 9.