A201630 - cp's OEIS frontend

A201630 a(n) = a(n-1) + 2*a(n-2) with n>1, a(0)=2, a(1)=7.

n	a(n)
0	2
1	7
2	11
3	25
4	47
5	97
6	191
7	385
8	767
9	1537
10	3071
11	6145
12	12287
13	24577
14	49151
15	98305
16	196607
17	393217
18	786431
19	1572865
20	3145727
21	6291457
22	12582911
23	25165825
24	50331647
25	100663297
26	201326591
27	402653185
28	805306367
29	1610612737
30	3221225471
31	6442450945
32	12884901887

[2, 7, 11, 25, 47, 97, 191, 385, 767, 1537, 3071, 6145, 12287, 24577, 49151, 98305, 196607, 393217, 786431, 1572865, 3145727, 6291457, 12582911, 25165825, 50331647, 100663297, 201326591, 402653185, 805306367, 1610612737, 3221225471, 6442450945, 12884901887]

cp's OEIS Frontend

A201630 a(n) = a(n-1) + 2*a(n-2) with n>1, a(0)=2, a(1)=7.

Table of values

List of values