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.

A284046 Numbers k, not ending in 0, such that the consecutive digits of k^2 differ by 0 or 1.

Table of values

n a(n)
1 1
2 2
3 3
4 11
5 26
6 111
7 1111
8 11111
9 105462
10 111111
11 460688
12 753576
13 1111111
14 2806538
15 3513626
16 5858612
17 11111111
18 23335688
19 111111111
20 674874474
21 8226042716
22 2131535935501
23 81655720279388

List of values

[1, 2, 3, 11, 26, 111, 1111, 11111, 105462, 111111, 460688, 753576, 1111111, 2806538, 3513626, 5858612, 11111111, 23335688, 111111111, 674874474, 8226042716, 2131535935501, 81655720279388]