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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.

A177368 Count the digits of the previous terms and describe nonzero counts, digits in ascending order, concatenating the count and the digit. Initial term is 9.

Table of values

n a(n)
1 9
2 19
3 1129
4 311239
5 51222349
6 615233141559
7 91625324451669
8 111826344654689
9 14192737475762899
10 161112839485864738129
11 211132103114951065778149
12 202911521231341151167788169
13 3038119214314413513697108189
14 50461202193174145146107138219
15 80541232213214165166127148239

List of values

[9, 19, 1129, 311239, 51222349, 615233141559, 91625324451669, 111826344654689, 14192737475762899, 161112839485864738129, 211132103114951065778149, 202911521231341151167788169, 3038119214314413513697108189, 50461202193174145146107138219, 80541232213214165166127148239]

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

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