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.

A032743 Super-2 Numbers (2 * n^2 contains substring '22' in its decimal expansion).

Table of values

n a(n)
1 19
2 31
3 69
4 81
5 105
6 106
7 107
8 119
9 127
10 131
11 169
12 181
13 190
14 219
15 231
16 247
17 269
18 281
19 310
20 318
21 319
22 331
23 332
24 333
25 334
26 335
27 336
28 337
29 338
30 339
31 348
32 369
33 381
34 419
35 431
36 454
37 469
38 481
39 511
40 519
41 531
42 558
43 569
44 581
45 601
46 619
47 631
48 669
49 679
50 681
51 690
52 715

List of values

[19, 31, 69, 81, 105, 106, 107, 119, 127, 131, 169, 181, 190, 219, 231, 247, 269, 281, 310, 318, 319, 331, 332, 333, 334, 335, 336, 337, 338, 339, 348, 369, 381, 419, 431, 454, 469, 481, 511, 519, 531, 558, 569, 581, 601, 619, 631, 669, 679, 681, 690, 715]