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.

A155567 Intersection of A002479 and A020669 : N = a^2 + 2b^2 = c^2 + 5d^2 for some integers a,b,c,d.

Table of values

n a(n)
1 0
2 1
3 4
4 6
5 9
6 16
7 24
8 25
9 36
10 41
11 49
12 54
13 64
14 81
15 86
16 89
17 96
18 100
19 121
20 129
21 134
22 144
23 150
24 164
25 166
26 169
27 196
28 201
29 214
30 216
31 225
32 241
33 246
34 249
35 256
36 281
37 289
38 294
39 321
40 324
41 326
42 344
43 356
44 361
45 369
46 384
47 400
48 401
49 409
50 441
51 449
52 454
53 484
54 486
55 489
56 516
57 521

List of values

[0, 1, 4, 6, 9, 16, 24, 25, 36, 41, 49, 54, 64, 81, 86, 89, 96, 100, 121, 129, 134, 144, 150, 164, 166, 169, 196, 201, 214, 216, 225, 241, 246, 249, 256, 281, 289, 294, 321, 324, 326, 344, 356, 361, 369, 384, 400, 401, 409, 441, 449, 454, 484, 486, 489, 516, 521]

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

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