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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.

A372199 a(n) = n! * F(n) * H(n), where F(n) is the n-th Fibonacci number and H(n) the n-th harmonic number.

Table of values

n a(n)
1 1
2 3
3 22
4 150
5 1370
6 14112
7 169884
8 2301264
9 34903584
10 584575200
11 10728401760
12 214047774720
13 4614042856320
14 106866549054720
15 2646889430976000
16 69814736722483200
17 1953778728154982400
18 57822137143219814400
19 1804373878844546150400
20 59213693468692224000000

List of values

[1, 3, 22, 150, 1370, 14112, 169884, 2301264, 34903584, 584575200, 10728401760, 214047774720, 4614042856320, 106866549054720, 2646889430976000, 69814736722483200, 1953778728154982400, 57822137143219814400, 1804373878844546150400, 59213693468692224000000]

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

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