A256402 - cp's OEIS frontend

A256402 Denominators of coefficients of expansion of exp(-Sum_{k=0..oo} x^(2^k)/2^k ) in powers of x.

n	a(n)
0	1
1	1
2	1
3	3
4	3
5	5
6	45
7	63
8	105
9	405
10	14175
11	17325
12	18711
13	552825
14	14189175
15	49116375
16	91216125
17	144729585
18	97692469875
19	109185701625
20	1031198293125
21	10257709336875
22	3430178002251
23	2348038513445625
24	1034450533895625
25	160789593855515625
26	16025362854266390625

[1, 1, 1, 3, 3, 5, 45, 63, 105, 405, 14175, 17325, 18711, 552825, 14189175, 49116375, 91216125, 144729585, 97692469875, 109185701625, 1031198293125, 10257709336875, 3430178002251, 2348038513445625, 1034450533895625, 160789593855515625, 16025362854266390625]

cp's OEIS Frontend

A256402 Denominators of coefficients of expansion of exp(-Sum_{k=0..oo} x^(2^k)/2^k ) in powers of x.

Table of values

List of values