A031608 - cp's OEIS frontend

A031608 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 20.

n	a(n)
1	2729
2	5233
3	8362
4	8917
5	24874
6	29873
7	31973
8	37997
9	38777
10	46237
11	54818
12	56698
13	57173
14	58129
15	64129
16	64634
17	65141
18	66161
19	66674
20	67189
21	67706
22	68746
23	74713
24	87277
25	88457
26	89645
27	90841
28	100186
29	101450
30	104002
31	104645
32	115333
33	116689
34	126541

[2729, 5233, 8362, 8917, 24874, 29873, 31973, 37997, 38777, 46237, 54818, 56698, 57173, 58129, 64129, 64634, 65141, 66161, 66674, 67189, 67706, 68746, 74713, 87277, 88457, 89645, 90841, 100186, 101450, 104002, 104645, 115333, 116689, 126541]

cp's OEIS Frontend

A031608 Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 20.

Table of values

List of values