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.

A155570 Intersection of A003136 and A020669: N = a^2 + 3b^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 9
5 16
6 21
7 25
8 36
9 49
10 61
11 64
12 81
13 84
14 100
15 109
16 121
17 129
18 144
19 169
20 181
21 189
22 196
23 201
24 225
25 229
26 241
27 244
28 256
29 289
30 301
31 309
32 324
33 336
34 349
35 361
36 381
37 400
38 409
39 421
40 436
41 441
42 469
43 484
44 489
45 516
46 525
47 529
48 541
49 549
50 576
51 601
52 625
53 661
54 669
55 676
56 709

List of values

[0, 1, 4, 9, 16, 21, 25, 36, 49, 61, 64, 81, 84, 100, 109, 121, 129, 144, 169, 181, 189, 196, 201, 225, 229, 241, 244, 256, 289, 301, 309, 324, 336, 349, 361, 381, 400, 409, 421, 436, 441, 469, 484, 489, 516, 525, 529, 541, 549, 576, 601, 625, 661, 669, 676, 709]