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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.

A377986 Number of integers k, with bigomega(k) > 2, whose arithmetic derivative (A003415) is equal to n!, the n-th factorial.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 1
6 1
7 2
8 1
9 2
10 6
11 0
12 4
13 4
14 3
15 7

List of values

[0, 0, 0, 1, 1, 1, 2, 1, 2, 6, 0, 4, 4, 3, 7]

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

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