A171507 - cp's OEIS frontend

A171507 a(n) = (52^(n+1)-9-(-1)^n)/6-2n.

n	a(n)
0	0
1	0
2	1
3	6
4	17
5	42
6	93
7	198
8	409
9	834
10	1685
11	3390
12	6801
13	13626
14	27277
15	54582
16	109193
17	218418
18	436869
19	873774
20	1747585
21	3495210
22	6990461
23	13980966
24	27961977
25	55924002
26	111848053
27	223696158
28	447392369
29	894784794
30	1789569645
31	3579139350
32	7158278761
33	14316557586

[0, 0, 1, 6, 17, 42, 93, 198, 409, 834, 1685, 3390, 6801, 13626, 27277, 54582, 109193, 218418, 436869, 873774, 1747585, 3495210, 6990461, 13980966, 27961977, 55924002, 111848053, 223696158, 447392369, 894784794, 1789569645, 3579139350, 7158278761, 14316557586]

cp's OEIS Frontend

A171507 a(n) = (52^(n+1)-9-(-1)^n)/6-2n.

Table of values

List of values

cp's OEIS Frontend

A171507 a(n) = (5*2^(n+1)-9-(-1)^n)/6-2*n.

Table of values

List of values

A171507 a(n) = (52^(n+1)-9-(-1)^n)/6-2n.