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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.

A084947 a(n) = Product_{i=0..n-1} (7*i+2).

Table of values

n a(n)
0 1
1 2
2 18
3 288
4 6624
5 198720
6 7352640
7 323516160
8 16499324160
9 956960801280
10 62202452083200
11 4478576549990400
12 353807547449241600
13 30427449080634777600
14 2829752764499034316800
15 282975276449903431680000
16 30278354580139667189760000
17 3451732422135922059632640000

List of values

[1, 2, 18, 288, 6624, 198720, 7352640, 323516160, 16499324160, 956960801280, 62202452083200, 4478576549990400, 353807547449241600, 30427449080634777600, 2829752764499034316800, 282975276449903431680000, 30278354580139667189760000, 3451732422135922059632640000]

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

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