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.

A174183 a(n) is the period k such that binomial(m, n) (mod 10) = binomial(m + k, n) (mod 10).

Table of values

n a(n)
0 1
1 10
2 20
3 60
4 240
5 1200
6 7200
7 50400
8 403200
9 3628800
10 36288000
11 399168000
12 4790016000
13 62270208000
14 871782912000
15 13076743680000
16 209227898880000
17 3556874280960000
18 64023737057280000
19 1216451004088320000

List of values

[1, 10, 20, 60, 240, 1200, 7200, 50400, 403200, 3628800, 36288000, 399168000, 4790016000, 62270208000, 871782912000, 13076743680000, 209227898880000, 3556874280960000, 64023737057280000, 1216451004088320000]