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.

A072487 a(1) = 1, a(n) = a(n-1) times largest nontrivial divisor if n is composite.

Table of values

n a(n)
1 1
2 2
3 6
4 12
5 60
6 180
7 1260
8 5040
9 15120
10 75600
11 831600
12 4989600
13 64864800
14 454053600
15 2270268000
16 18162144000
17 308756448000
18 2778808032000
19 52797352608000
20 527973526080000
21 3695814682560000
22 40653961508160000

List of values

[1, 2, 6, 12, 60, 180, 1260, 5040, 15120, 75600, 831600, 4989600, 64864800, 454053600, 2270268000, 18162144000, 308756448000, 2778808032000, 52797352608000, 527973526080000, 3695814682560000, 40653961508160000]

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

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