cp's OEIS Frontend

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.

A090041 a(n) = 10*a(n-1) - 20*a(n-2), a(0)=1, a(1)=6.

Table of values

n a(n)
0 1
1 6
2 40
3 280
4 2000
5 14400
6 104000
7 752000
8 5440000
9 39360000
10 284800000
11 2060800000
12 14912000000
13 107904000000
14 780800000000
15 5649920000000
16 40883200000000
17 295833600000000
18 2140672000000000
19 15490048000000000

List of values

[1, 6, 40, 280, 2000, 14400, 104000, 752000, 5440000, 39360000, 284800000, 2060800000, 14912000000, 107904000000, 780800000000, 5649920000000, 40883200000000, 295833600000000, 2140672000000000, 15490048000000000]

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

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