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.

A031623 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 35.

Table of values

n a(n)
1 15178
2 25681
3 38537
4 52153
5 53069
6 53993
7 70981
8 72586
9 90289
10 91493
11 115961
12 137341
13 140317
14 164554
15 166993
16 168629
17 170273
18 171098
19 192469
20 193346
21 195989
22 196874
23 197761
24 201329
25 229213
26 258905
27 260941
28 262985
29 265037
30 267097
31 271241

List of values

[15178, 25681, 38537, 52153, 53069, 53993, 70981, 72586, 90289, 91493, 115961, 137341, 140317, 164554, 166993, 168629, 170273, 171098, 192469, 193346, 195989, 196874, 197761, 201329, 229213, 258905, 260941, 262985, 265037, 267097, 271241]

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

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