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.

A131448 Denominators of n-th approximation of factorial (also called harmonic) expansion of Euler's constant gamma (A001620).

Table of values

n a(n)
1 1
2 2
3 2
4 24
5 40
6 144
7 5040
8 40320
9 6048
10 6048
11 19958400
12 53222400
13 53222400
14 87178291200
15 118879488000
16 5230697472000
17 8083805184000
18 3201186852864000
19 40548366802944000
20 2432902008176640000
21 17030314057236480000

List of values

[1, 2, 2, 24, 40, 144, 5040, 40320, 6048, 6048, 19958400, 53222400, 53222400, 87178291200, 118879488000, 5230697472000, 8083805184000, 3201186852864000, 40548366802944000, 2432902008176640000, 17030314057236480000]

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

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