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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.

A027877 a(n) = Product_{i=1..n} (9^i - 1).

Table of values

n a(n)
0 1
1 8
2 640
3 465920
4 3056435200
5 180476385689600
6 95912370410881024000
7 458745798479390789599232000
8 19747501938318761090457052119040000
9 7650586837724400321220283274999910891520000

List of values

[1, 8, 640, 465920, 3056435200, 180476385689600, 95912370410881024000, 458745798479390789599232000, 19747501938318761090457052119040000, 7650586837724400321220283274999910891520000]

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

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