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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.

A383227 a(n) is the product of first n even numbers not divisible by 5 (cf. A217562).

Table of values

n a(n)
0 1
1 2
2 8
3 48
4 384
5 4608
6 64512
7 1032192
8 18579456
9 408748032
10 9809952768
11 255058771968
12 7141645615104
13 228532659683328
14 7770110429233152
15 279723975452393472
16 10629511067190951936
17 446439464822019981312
18 19643336452168879177728
19 903593476799768442175488
20 43372486886388885224423424

List of values

[1, 2, 8, 48, 384, 4608, 64512, 1032192, 18579456, 408748032, 9809952768, 255058771968, 7141645615104, 228532659683328, 7770110429233152, 279723975452393472, 10629511067190951936, 446439464822019981312, 19643336452168879177728, 903593476799768442175488, 43372486886388885224423424]

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

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