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.

A383077 Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 5.

Table of values

n a(n)
1 9
2 25
3 95
4 325
5 1152
6 4035
7 14191
8 49840
9 175126
10 615251
11 2161615
12 7594445
13 26681890
14 93742420
15 329348786
16 1157113228
17 4065328917
18 14282870761
19 50180539756
20 176301151441
21 619405374858
22 2176179878029
23 7645653483902
24 26861757974676
25 94374410640201
26 331569117405852

List of values

[9, 25, 95, 325, 1152, 4035, 14191, 49840, 175126, 615251, 2161615, 7594445, 26681890, 93742420, 329348786, 1157113228, 4065328917, 14282870761, 50180539756, 176301151441, 619405374858, 2176179878029, 7645653483902, 26861757974676, 94374410640201, 331569117405852]

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

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