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.

A383071 Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 3.

Table of values

n a(n)
1 9
2 49
3 282
4 1597
5 9110
6 51800
7 294962
8 1678509
9 9554447
10 54379100
11 309516061
12 1761665068
13 10026939872
14 57070448658
15 324829258129
16 1848836718933
17 10523062986178
18 59894327810129
19 340901772402794
20 1940317523613740
21 11043744749517210
22 62857906319753189

List of values

[9, 49, 282, 1597, 9110, 51800, 294962, 1678509, 9554447, 54379100, 309516061, 1761665068, 10026939872, 57070448658, 324829258129, 1848836718933, 10523062986178, 59894327810129, 340901772402794, 1940317523613740, 11043744749517210, 62857906319753189]

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

Content is available under The OEIS End-User License Agreement.