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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.

A367246 a(n) is the number of n-digit numbers whose difference between the largest and smallest digits is equal to 5.

Table of values

n a(n)
1 0
2 9
3 139
4 1419
5 12079
6 92859
7 669319
8 4617699
9 30878959
10 201792939
11 1295974999
12 8212422579
13 51499341439
14 320287850619
15 1978857202279
16 12161478061059
17 74421280021519
18 453832688077899
19 2759692966903159
20 16742329188365139
21 101377580843991199
22 612894508749226779
23 3700556151386869639

List of values

[0, 9, 139, 1419, 12079, 92859, 669319, 4617699, 30878959, 201792939, 1295974999, 8212422579, 51499341439, 320287850619, 1978857202279, 12161478061059, 74421280021519, 453832688077899, 2759692966903159, 16742329188365139, 101377580843991199, 612894508749226779, 3700556151386869639]

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

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