A135583 - cp's OEIS frontend

A135583 a(n) = 4*a(n-1) - 4 for n>0, a(0)=3.

n	a(n)
0	3
1	8
2	28
3	108
4	428
5	1708
6	6828
7	27308
8	109228
9	436908
10	1747628
11	6990508
12	27962028
13	111848108
14	447392428
15	1789569708
16	7158278828
17	28633115308
18	114532461228
19	458129844908
20	1832519379628
21	7330077518508
22	29320310074028

[3, 8, 28, 108, 428, 1708, 6828, 27308, 109228, 436908, 1747628, 6990508, 27962028, 111848108, 447392428, 1789569708, 7158278828, 28633115308, 114532461228, 458129844908, 1832519379628, 7330077518508, 29320310074028]

cp's OEIS Frontend

A135583 a(n) = 4*a(n-1) - 4 for n>0, a(0)=3.

Table of values

List of values