A031419 - cp's OEIS frontend

A031419 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 6.

n	a(n)
1	109
2	281
3	865
4	922
5	1277
6	1613
7	1769
8	1933
9	2161
10	2341
11	2789
12	3098
13	3653
14	3961
15	4285
16	4457
17	5065
18	5153
19	5713
20	5858
21	5954
22	6101
23	6458
24	6554
25	6709
26	7129
27	7349
28	7681
29	8237
30	8941
31	9242
32	9305
33	9677
34	10177
35	10498
36	10565
37	10693
38	10762
39	11162
40	11365
41	11698

[109, 281, 865, 922, 1277, 1613, 1769, 1933, 2161, 2341, 2789, 3098, 3653, 3961, 4285, 4457, 5065, 5153, 5713, 5858, 5954, 6101, 6458, 6554, 6709, 7129, 7349, 7681, 8237, 8941, 9242, 9305, 9677, 10177, 10498, 10565, 10693, 10762, 11162, 11365, 11698]

cp's OEIS Frontend

A031419 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 6.

Table of values

List of values