A382335 - cp's OEIS frontend

A382335 Expansion of ( 1 + 4 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/2).

n	a(n)
0	1
1	2
2	4
3	-2
4	10
5	-2
6	-20
7	82
8	-108
9	-114
10	1052
11	-2702
12	2054
13	11394
14	-52636
15	99534
16	32938
17	-831698
18	2649676
19	-3119694
20	-8779530
21	54334130
22	-125649628
23	31877726
24	849214460
25	-3274210670
26	5129552132
27	7097067566
28	-65583106070
29	180299051838
30	-133300439300

[1, 2, 4, -2, 10, -2, -20, 82, -108, -114, 1052, -2702, 2054, 11394, -52636, 99534, 32938, -831698, 2649676, -3119694, -8779530, 54334130, -125649628, 31877726, 849214460, -3274210670, 5129552132, 7097067566, -65583106070, 180299051838, -133300439300]

cp's OEIS Frontend

A382335 Expansion of ( 1 + 4 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/2).

Table of values

List of values