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.

A305719 Numbers whose squares have the same first and last digits.

Table of values

n a(n)
1 1
2 2
3 3
4 11
5 22
6 26
7 39
8 41
9 68
10 75
11 97
12 101
13 109
14 111
15 119
16 121
17 129
18 131
19 139
20 141
21 202
22 208
23 212
24 218
25 222
26 225
27 235
28 246
29 254
30 256
31 264
32 303
33 307
34 313
35 319
36 321
37 329
38 331
39 339
40 341
41 349
42 351
43 359
44 361
45 369
46 371
47 379
48 381
49 389
50 391
51 399
52 401
53 409
54 411
55 419
56 421
57 429
58 431
59 439
60 441
61 638

List of values

[1, 2, 3, 11, 22, 26, 39, 41, 68, 75, 97, 101, 109, 111, 119, 121, 129, 131, 139, 141, 202, 208, 212, 218, 222, 225, 235, 246, 254, 256, 264, 303, 307, 313, 319, 321, 329, 331, 339, 341, 349, 351, 359, 361, 369, 371, 379, 381, 389, 391, 399, 401, 409, 411, 419, 421, 429, 431, 439, 441, 638]

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

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