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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.

A105310 a(n) = concatenation of i n times, with i = 1 to n.

Table of values

n a(n)
21 1
22 1122
23 111222333
24 1111222233334444
25 1111122222333334444455555
26 111111222222333333444444555555666666
27 1111111222222233333334444444555555566666667777777

List of values

[1, 1122, 111222333, 1111222233334444, 1111122222333334444455555, 111111222222333333444444555555666666, 1111111222222233333334444444555555566666667777777]

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

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