cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A031664 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 76.

Table of values

n a(n)
1 119797
2 176521
3 250169
4 327409
5 420193
6 422789
7 425393
8 426698
9 530345
10 533261
11 643645
12 653305
13 766154
14 774929
15 780218
16 783754
17 905026
18 906929
19 910741
20 914561
21 918389
22 920306
23 926069
24 1061629
25 1219657
26 1224077
27 1232941
28 1241837

List of values

[119797, 176521, 250169, 327409, 420193, 422789, 425393, 426698, 530345, 533261, 643645, 653305, 766154, 774929, 780218, 783754, 905026, 906929, 910741, 914561, 918389, 920306, 926069, 1061629, 1219657, 1224077, 1232941, 1241837]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.