A373280 - cp's OEIS frontend

A373280 Expansion of Sum_{k>=0} x^(4^k) / (1 - 4*x^(4^k)).

n	a(n)
1	1
2	4
3	16
4	65
5	256
6	1024
7	4096
8	16388
9	65536
10	262144
11	1048576
12	4194320
13	16777216
14	67108864
15	268435456
16	1073741889
17	4294967296
18	17179869184
19	68719476736
20	274877907200
21	1099511627776
22	4398046511104
23	17592186044416
24	70368744178688
25	281474976710656
26	1125899906842624

[1, 4, 16, 65, 256, 1024, 4096, 16388, 65536, 262144, 1048576, 4194320, 16777216, 67108864, 268435456, 1073741889, 4294967296, 17179869184, 68719476736, 274877907200, 1099511627776, 4398046511104, 17592186044416, 70368744178688, 281474976710656, 1125899906842624]

cp's OEIS Frontend

A373280 Expansion of Sum_{k>=0} x^(4^k) / (1 - 4*x^(4^k)).

Table of values

List of values