A056486 - cp's OEIS frontend

A056486 a(n) = (9*2^n + (-2)^n)/4 for n>0.

n	a(n)
1	4
2	10
3	16
4	40
5	64
6	160
7	256
8	640
9	1024
10	2560
11	4096
12	10240
13	16384
14	40960
15	65536
16	163840
17	262144
18	655360
19	1048576
20	2621440
21	4194304
22	10485760
23	16777216
24	41943040
25	67108864
26	167772160
27	268435456
28	671088640
29	1073741824
30	2684354560
31	4294967296
32	10737418240

[4, 10, 16, 40, 64, 160, 256, 640, 1024, 2560, 4096, 10240, 16384, 40960, 65536, 163840, 262144, 655360, 1048576, 2621440, 4194304, 10485760, 16777216, 41943040, 67108864, 167772160, 268435456, 671088640, 1073741824, 2684354560, 4294967296, 10737418240]

cp's OEIS Frontend

A056486 a(n) = (9*2^n + (-2)^n)/4 for n>0.

Table of values

List of values