A188645 - cp's OEIS frontend

A188645 Array of ((k^n)+(k^(-n)))/2 where k=(sqrt(x^2+1)+x)^2 for integers x>=1.

n	a(n)
0	1
1	3
2	1
3	17
4	9
5	1
6	99
7	161
8	19
9	1
10	577
11	2889
12	721
13	33
14	1
15	3363
16	51841
17	27379
18	2177
19	51
20	1
21	19601
22	930249
23	1039681
24	143649
25	5201
26	73
27	1
28	114243
29	16692641
30	39480499
31	9478657
32	530451
33	10657
34	99
35	1
36	665857
37	299537289
38	1499219281
39	625447713
40	54100801
41	1555849
42	19601
43	129
44	1

[1, 3, 1, 17, 9, 1, 99, 161, 19, 1, 577, 2889, 721, 33, 1, 3363, 51841, 27379, 2177, 51, 1, 19601, 930249, 1039681, 143649, 5201, 73, 1, 114243, 16692641, 39480499, 9478657, 530451, 10657, 99, 1, 665857, 299537289, 1499219281, 625447713, 54100801, 1555849, 19601, 129, 1]

cp's OEIS Frontend

A188645 Array of ((k^n)+(k^(-n)))/2 where k=(sqrt(x^2+1)+x)^2 for integers x>=1.

Table of values

List of values