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.

A383078 Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 6.

Table of values

n a(n)
1 9
2 16
3 50
4 140
5 407
6 1168
7 3367
8 9691
9 27908
10 80354
11 231374
12 666211
13 1918282
14 5523469
15 15904199
16 45794312
17 131859470
18 379674208
19 1093228315
20 3147825472
21 9063802211
22 26098178315
23 75146709476
24 216376326214
25 623030800330
26 1793945691511
27 5165460748322
28 14873351444633

List of values

[9, 16, 50, 140, 407, 1168, 3367, 9691, 27908, 80354, 231374, 666211, 1918282, 5523469, 15904199, 45794312, 131859470, 379674208, 1093228315, 3147825472, 9063802211, 26098178315, 75146709476, 216376326214, 623030800330, 1793945691511, 5165460748322, 14873351444633]

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

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