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.

A107677 Numbers A such that the square of concatenation AA is of form NNMM.

Table of values

n a(n)
1 8
2 89
3 98
4 406
5 593
6 998
7 4445
8 4544
9 5455
10 5554
11 9899
12 9998
13 34687
14 44443
15 55556
16 65312
17 90242
18 99998
19 219374
20 285713
21 286714
22 296297
23 297296
24 340066
25 362636
26 363637
27 374219
28 416989
29 583010
30 625780
31 636362
32 637363
33 659933
34 702703
35 703702

List of values

[8, 89, 98, 406, 593, 998, 4445, 4544, 5455, 5554, 9899, 9998, 34687, 44443, 55556, 65312, 90242, 99998, 219374, 285713, 286714, 296297, 297296, 340066, 362636, 363637, 374219, 416989, 583010, 625780, 636362, 637363, 659933, 702703, 703702]