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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.

A199760 a(n) = (9*11^n + 1)/10.

Table of values

n a(n)
0 1
1 10
2 109
3 1198
4 13177
5 144946
6 1594405
7 17538454
8 192922993
9 2122152922
10 23343682141
11 256780503550
12 2824585539049
13 31070440929538
14 341774850224917
15 3759523352474086
16 41354756877214945
17 454902325649364394
18 5003925582143008333
19 55043181403573091662
20 605474995439304008281

List of values

[1, 10, 109, 1198, 13177, 144946, 1594405, 17538454, 192922993, 2122152922, 23343682141, 256780503550, 2824585539049, 31070440929538, 341774850224917, 3759523352474086, 41354756877214945, 454902325649364394, 5003925582143008333, 55043181403573091662, 605474995439304008281]

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

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