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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.

A264118 Numbers that can be represented as S1+S2, as T1+T2, and as S3+T3, where S1, S2, S3 are positive squares, and T1, T2, T3 are positive triangular numbers.

Table of values

n a(n)
1 2
2 25
3 29
4 37
5 61
6 65
7 72
8 100
9 101
10 106
11 130
12 136
13 137
14 157
15 169
16 200
17 202
18 205
19 226
20 232
21 234
22 241
23 274
24 277
25 289
26 340
27 353
28 389
29 400
30 409
31 416
32 421
33 436
34 442
35 445
36 466
37 490
38 514
39 520
40 522
41 562
42 577
43 596
44 610
45 625
46 637
47 640
48 661
49 666
50 676
51 697
52 724
53 757
54 765
55 785
56 794
57 820

List of values

[2, 25, 29, 37, 61, 65, 72, 100, 101, 106, 130, 136, 137, 157, 169, 200, 202, 205, 226, 232, 234, 241, 274, 277, 289, 340, 353, 389, 400, 409, 416, 421, 436, 442, 445, 466, 490, 514, 520, 522, 562, 577, 596, 610, 625, 637, 640, 661, 666, 676, 697, 724, 757, 765, 785, 794, 820]

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

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