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.

A269600 Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by one or less.

Table of values

n a(n)
1 2
2 9
3 60
4 572
5 7030
6 105892
7 1886252
8 38768412
9 902743646
10 23482784400
11 674804472216
12 21227322458468
13 725465523386294
14 26765145874993234
15 1060182321437102136
16 44874027105660248520
17 2021234030434596074938

List of values

[2, 9, 60, 572, 7030, 105892, 1886252, 38768412, 902743646, 23482784400, 674804472216, 21227322458468, 725465523386294, 26765145874993234, 1060182321437102136, 44874027105660248520, 2021234030434596074938]

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

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