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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.

A129641 Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+409)^2 = y^2.

Table of values

n a(n)
1 0
2 200
3 611
4 1227
5 2291
6 4620
7 8180
8 14364
9 27927
10 48671
11 84711
12 163760
13 284664
14 494720
15 955451
16 1660131
17 2884427
18 5569764
19 9676940
20 16812660
21 32463951
22 56402327
23 97992351
24 189214760
25 328737840
26 571142264
27 1102825427
28 1916025531
29 3328862051
30 6427738620

List of values

[0, 200, 611, 1227, 2291, 4620, 8180, 14364, 27927, 48671, 84711, 163760, 284664, 494720, 955451, 1660131, 2884427, 5569764, 9676940, 16812660, 32463951, 56402327, 97992351, 189214760, 328737840, 571142264, 1102825427, 1916025531, 3328862051, 6427738620]

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

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