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.

A155568 Intersection of A001481 inter A020670: N = a^2 + b^2 = c^2 + 7d^2 for some integers a,b,c,d.

Table of values

n a(n)
1 0
2 1
3 4
4 8
5 9
6 16
7 25
8 29
9 32
10 36
11 37
12 49
13 53
14 64
15 72
16 81
17 100
18 109
19 113
20 116
21 121
22 128
23 137
24 144
25 148
26 149
27 169
28 193
29 196
30 197
31 200
32 212
33 225
34 232
35 233
36 256
37 261
38 277
39 281
40 288
41 289
42 296
43 317
44 324
45 333
46 337
47 361
48 373
49 389
50 392
51 400
52 401
53 421
54 424
55 436
56 441
57 449

List of values

[0, 1, 4, 8, 9, 16, 25, 29, 32, 36, 37, 49, 53, 64, 72, 81, 100, 109, 113, 116, 121, 128, 137, 144, 148, 149, 169, 193, 196, 197, 200, 212, 225, 232, 233, 256, 261, 277, 281, 288, 289, 296, 317, 324, 333, 337, 361, 373, 389, 392, 400, 401, 421, 424, 436, 441, 449]

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

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