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.

A077259 First member of the Diophantine pair (m,k) that satisfies 5*(m^2 + m) = k^2 + k; a(n) = m.

Table of values

n a(n)
0 0
1 2
2 6
3 44
4 116
5 798
6 2090
7 14328
8 37512
9 257114
10 673134
11 4613732
12 12078908
13 82790070
14 216747218
15 1485607536
16 3889371024
17 26658145586
18 69791931222
19 478361013020
20 1252365390980
21 8583840088782
22 22472785106426
23 154030760585064
24 403257766524696
25 2763969850442378

List of values

[0, 2, 6, 44, 116, 798, 2090, 14328, 37512, 257114, 673134, 4613732, 12078908, 82790070, 216747218, 1485607536, 3889371024, 26658145586, 69791931222, 478361013020, 1252365390980, 8583840088782, 22472785106426, 154030760585064, 403257766524696, 2763969850442378]