A342319 - cp's OEIS frontend

A342319 a(n) = denominator(((i^n * PolyLog(1 - n, -i) + (-i)^n * PolyLog(1 - n, i))) / (4^n - 2^n)) if n > 0 and a(0) = 1. Here i denotes the imaginary unit.

n	a(n)
0	1
1	2
2	12
3	56
4	120
5	992
6	252
7	16256
8	240
9	261632
10	132
11	4192256
12	32760
13	67100672
14	12
15	1073709056
16	8160
17	17179738112
18	14364
19	274877382656
20	6600
21	4398044413952
22	276
23	70368735789056
24	65520
25	1125899873288192
26	12
27	18014398375264256
28	3480
29	288230375614840832

[1, 2, 12, 56, 120, 992, 252, 16256, 240, 261632, 132, 4192256, 32760, 67100672, 12, 1073709056, 8160, 17179738112, 14364, 274877382656, 6600, 4398044413952, 276, 70368735789056, 65520, 1125899873288192, 12, 18014398375264256, 3480, 288230375614840832]

cp's OEIS Frontend

A342319 a(n) = denominator(((i^n * PolyLog(1 - n, -i) + (-i)^n * PolyLog(1 - n, i))) / (4^n - 2^n)) if n > 0 and a(0) = 1. Here i denotes the imaginary unit.

Table of values

List of values