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.

A216682 Perfect squares which can be written in all the four forms a^2+b^2, a^2+2*b^2, a^2+3*b^2 and a^2+7*b^2, with a > 0 and b > 0.

Table of values

n a(n)
1 3600
2 4624
3 12100
4 12321
5 14400
6 18496
7 20449
8 24336
9 26896
10 30276
11 32400
12 37249
13 41616
14 46225
15 48400
16 49284
17 51076
18 57600
19 73984
20 75076
21 81796
22 85264
23 90000
24 97344
25 101124
26 106929
27 107584
28 108900
29 110889
30 112225
31 113569
32 115600
33 121104
34 126736
35 129600
36 139876
37 144400
38 148225
39 148996
40 150544
41 165649
42 166464
43 176400
44 184041
45 184900
46 193600
47 197136

List of values

[3600, 4624, 12100, 12321, 14400, 18496, 20449, 24336, 26896, 30276, 32400, 37249, 41616, 46225, 48400, 49284, 51076, 57600, 73984, 75076, 81796, 85264, 90000, 97344, 101124, 106929, 107584, 108900, 110889, 112225, 113569, 115600, 121104, 126736, 129600, 139876, 144400, 148225, 148996, 150544, 165649, 166464, 176400, 184041, 184900, 193600, 197136]