A031607 - cp's OEIS frontend

A031607 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 19.

n	a(n)
1	4538
2	4673
3	7477
4	7825
5	11785
6	16553
7	22129
8	22426
9	26533
10	26858
11	27514
12	28513
13	34217
14	40441
15	43705
16	48053
17	50258
18	52058
19	57269
20	57746
21	58706
22	59674
23	60161
24	61141
25	62129
26	62626
27	68329
28	72553
29	77017
30	78125
31	79241
32	80365
33	81497
34	83785
35	88577
36	90362

[4538, 4673, 7477, 7825, 11785, 16553, 22129, 22426, 26533, 26858, 27514, 28513, 34217, 40441, 43705, 48053, 50258, 52058, 57269, 57746, 58706, 59674, 60161, 61141, 62129, 62626, 68329, 72553, 77017, 78125, 79241, 80365, 81497, 83785, 88577, 90362]

cp's OEIS Frontend

A031607 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 19.

Table of values

List of values