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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.

A014923 a(1) = 1, a(n) = n*9^(n-1) + a(n-1).

Table of values

n a(n)
1 1
2 19
3 262
4 3178
5 35983
6 390277
7 4110364
8 42374116
9 429794605
10 4303999495
11 42658627906
12 419231343214
13 4090815317467
14 39676936914073
15 382828823738488
16 3677086937252872
17 35178430147734169
18 335367700741732411
19 3187165771384715710
20 30204200124844557490
21 285515174765040062311

List of values

[1, 19, 262, 3178, 35983, 390277, 4110364, 42374116, 429794605, 4303999495, 42658627906, 419231343214, 4090815317467, 39676936914073, 382828823738488, 3677086937252872, 35178430147734169, 335367700741732411, 3187165771384715710, 30204200124844557490, 285515174765040062311]

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

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