A031606 - cp's OEIS frontend

A031606 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 18.

n	a(n)
1	82
2	2141
3	4274
4	6970
5	7306
6	10525
7	10937
8	14569
9	15053
10	18994
11	20389
12	24314
13	25253
14	25889
15	30637
16	31337
17	36541
18	43793
19	47618
20	51701
21	52154
22	52609
23	53066
24	54449
25	55381
26	62233
27	70537
28	71597
29	72665
30	80485
31	81050
32	82757
33	83905
34	85061
35	85642
36	86225
37	86810

[82, 2141, 4274, 6970, 7306, 10525, 10937, 14569, 15053, 18994, 20389, 24314, 25253, 25889, 30637, 31337, 36541, 43793, 47618, 51701, 52154, 52609, 53066, 54449, 55381, 62233, 70537, 71597, 72665, 80485, 81050, 82757, 83905, 85061, 85642, 86225, 86810]

cp's OEIS Frontend

A031606 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 18.

Table of values

List of values