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.

A268254 Number of length-(n+1) 0..n arrays with new repeated values introduced in sequential order starting with zero.

Table of values

n a(n)
1 3
2 17
3 143
4 1610
5 22710
6 384605
7 7594224
8 171161319
9 4333369912
10 121706300672
11 3754131927947
12 126136021943207
13 4584723067123764
14 179223541390399501
15 7497293121634632330
16 334153612151475666156
17 15807274255300507355559

List of values

[3, 17, 143, 1610, 22710, 384605, 7594224, 171161319, 4333369912, 121706300672, 3754131927947, 126136021943207, 4584723067123764, 179223541390399501, 7497293121634632330, 334153612151475666156, 15807274255300507355559]