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.

A324250 Sequence a(n) = 3*A002559(n) - 2 determining the principal reduced indefinite binary quadratic form [1, a(n), -a(n)] for Markoff triples.

Table of values

n a(n)
1 1
2 4
3 13
4 37
5 85
6 100
7 265
8 505
9 580
10 697
11 1297
12 1828
13 2953
14 3973
15 4789
16 8689
17 12541
18 17221
19 19396
20 22681
21 27229
22 32836
23 44101
24 85969
25 100381
26 112996
27 129781
28 154921
29 186628
30 225073
31 289669
32 405409
33 585073
34 589252
35 884053
36 1279165
37 1498177
38 1542685
39 1938052
40 2777293
41 3410065
42 3836452
43 4038805

List of values

[1, 4, 13, 37, 85, 100, 265, 505, 580, 697, 1297, 1828, 2953, 3973, 4789, 8689, 12541, 17221, 19396, 22681, 27229, 32836, 44101, 85969, 100381, 112996, 129781, 154921, 186628, 225073, 289669, 405409, 585073, 589252, 884053, 1279165, 1498177, 1542685, 1938052, 2777293, 3410065, 3836452, 4038805]