A117616 - cp's OEIS frontend

A117616 a(0)=0, a(n)=4a(n-1)+2 for n odd, a(n)=4a(n-1) for n even.

n	a(n)
0	0
1	2
2	8
3	34
4	136
5	546
6	2184
7	8738
8	34952
9	139810
10	559240
11	2236962
12	8947848
13	35791394
14	143165576
15	572662306
16	2290649224
17	9162596898
18	36650387592
19	146601550370
20	586406201480
21	2345624805922
22	9382499223688
23	37529996894754

[0, 2, 8, 34, 136, 546, 2184, 8738, 34952, 139810, 559240, 2236962, 8947848, 35791394, 143165576, 572662306, 2290649224, 9162596898, 36650387592, 146601550370, 586406201480, 2345624805922, 9382499223688, 37529996894754]

cp's OEIS Frontend

A117616 a(0)=0, a(n)=4a(n-1)+2 for n odd, a(n)=4a(n-1) for n even.

Table of values

List of values