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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.

A372074 a(1) = 1; thereafter a(n+1) is obtained by appending the digit-sum of a(n) to a(n).

Table of values

n a(n)
1 1
2 11
3 112
4 1124
5 11248
6 1124816
7 112481623
8 11248162328
9 1124816232838
10 112481623283849
11 11248162328384962
12 1124816232838496270
13 112481623283849627077
14 11248162328384962707791
15 11248162328384962707791101
16 11248162328384962707791101103
17 11248162328384962707791101103107
18 11248162328384962707791101103107115

List of values

[1, 11, 112, 1124, 11248, 1124816, 112481623, 11248162328, 1124816232838, 112481623283849, 11248162328384962, 1124816232838496270, 112481623283849627077, 11248162328384962707791, 11248162328384962707791101, 11248162328384962707791101103, 11248162328384962707791101103107, 11248162328384962707791101103107115]

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

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