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.

A108889 a(n) is n! divided by LCM of all composite numbers k such that n < k < prime(r) where prime(r-1)< n.

Table of values

n a(n)
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 448
9 36288
10 3628800
11 39916800
12 479001600
13 6227020800
14 363242880
15 81729648000
16 20922789888000
17 355687428096000
18 6402373705728000
19 121645100408832000
20 5266021662720000
21 2322315553259520000

List of values

[1, 2, 6, 24, 120, 720, 5040, 448, 36288, 3628800, 39916800, 479001600, 6227020800, 363242880, 81729648000, 20922789888000, 355687428096000, 6402373705728000, 121645100408832000, 5266021662720000, 2322315553259520000]

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

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