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.

A264101 Numbers that can't be represented as the sum of two squares, two triangular numbers, or a square and a triangular number.

Table of values

n a(n)
1 23
2 33
3 47
4 62
5 63
6 86
7 118
8 134
9 138
10 143
11 158
12 167
13 188
14 195
15 203
16 204
17 209
18 223
19 230
20 243
21 248
22 275
23 283
24 294
25 318
26 323
27 348
28 368
29 383
30 385
31 395
32 398
33 408
34 411
35 413
36 418
37 419
38 426
39 437
40 440
41 448
42 454
43 467
44 473
45 476
46 489
47 492
48 503
49 508
50 518
51 523
52 558
53 563
54 566
55 572
56 608

List of values

[23, 33, 47, 62, 63, 86, 118, 134, 138, 143, 158, 167, 188, 195, 203, 204, 209, 223, 230, 243, 248, 275, 283, 294, 318, 323, 348, 368, 383, 385, 395, 398, 408, 411, 413, 418, 419, 426, 437, 440, 448, 454, 467, 473, 476, 489, 492, 503, 508, 518, 523, 558, 563, 566, 572, 608]

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

Content is available under The OEIS End-User License Agreement.