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.

A383072 Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 4.

Table of values

n a(n)
1 9
2 36
3 166
4 722
5 3224
6 14236
7 63172
8 279728
9 1239800
10 5492776
11 24339328
12 107843024
13 477848240
14 2117296288
15 9381580672
16 41568964736
17 184188672416
18 816124473376
19 3616179527008
20 16022988545120
21 70996522976672
22 314579653288672
23 1393876135246624
24 6176148562918496

List of values

[9, 36, 166, 722, 3224, 14236, 63172, 279728, 1239800, 5492776, 24339328, 107843024, 477848240, 2117296288, 9381580672, 41568964736, 184188672416, 816124473376, 3616179527008, 16022988545120, 70996522976672, 314579653288672, 1393876135246624, 6176148562918496]

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

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