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.

A337314 a(n) is the number of n-digit positive integers with exactly four distinct base 10 digits.

Table of values

n a(n)
1 0
2 0
3 0
4 4536
5 45360
6 294840
7 1587600
8 7715736
9 35244720
10 154700280
11 661122000
12 2773768536
13 11487556080
14 47136955320
15 192126589200
16 779279814936
17 3149513947440
18 12695388483960
19 51073849285200
20 205172877726936
21 823325141746800
22 3301203837670200
23 13228529919066000

List of values

[0, 0, 0, 4536, 45360, 294840, 1587600, 7715736, 35244720, 154700280, 661122000, 2773768536, 11487556080, 47136955320, 192126589200, 779279814936, 3149513947440, 12695388483960, 51073849285200, 205172877726936, 823325141746800, 3301203837670200, 13228529919066000]