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.

A256515 Nonpalindromic positive integers k such that the absolute value of k^2 - reverse(k)^2 is a square.

Table of values

n a(n)
1 56
2 65
3 5265
4 5625
5 5656
6 6565
7 12705
8 44370
9 50721
10 51557
11 55517
12 56056
13 59248
14 65065
15 71555
16 75515
17 84295
18 139755
19 273728
20 360145
21 481610
22 523908
23 541063
24 557931
25 560056
26 560439
27 565656
28 606056
29 621770
30 650065
31 650606
32 656565
33 697996
34 699796
35 809325
36 827372

List of values

[56, 65, 5265, 5625, 5656, 6565, 12705, 44370, 50721, 51557, 55517, 56056, 59248, 65065, 71555, 75515, 84295, 139755, 273728, 360145, 481610, 523908, 541063, 557931, 560056, 560439, 565656, 606056, 621770, 650065, 650606, 656565, 697996, 699796, 809325, 827372]