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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.

A009763 a(n) is (n+1)!*(n+2)! times coefficient of x^n in (log(1-x))^-1.

Table of values

n a(n)
0 1
1 1
2 6
3 76
4 1620
5 51780
6 2310000
7 136898496
8 10393064640
9 982930939200
10 113269208976000
11 15619762139984640
12 2539231615282602240
13 480507998223110457600
14 104704722014993388288000
15 26027184253285000629043200
16 7320192187611052189440000000
17 2312657526289162442074933248000

List of values

[1, 1, 6, 76, 1620, 51780, 2310000, 136898496, 10393064640, 982930939200, 113269208976000, 15619762139984640, 2539231615282602240, 480507998223110457600, 104704722014993388288000, 26027184253285000629043200, 7320192187611052189440000000, 2312657526289162442074933248000]

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

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