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.

A172241 a(n) = (1/18)*(8^n - (-1)^n - 9).

Table of values

n a(n)
1 0
2 3
3 28
4 227
5 1820
6 14563
7 116508
8 932067
9 7456540
10 59652323
11 477218588
12 3817748707
13 30541989660
14 244335917283
15 1954687338268
16 15637498706147
17 125099989649180
18 1000799917193443
19 8006399337547548
20 64051194700380387

List of values

[0, 3, 28, 227, 1820, 14563, 116508, 932067, 7456540, 59652323, 477218588, 3817748707, 30541989660, 244335917283, 1954687338268, 15637498706147, 125099989649180, 1000799917193443, 8006399337547548, 64051194700380387]

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

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