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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.

A053067 a(n) is the concatenation of next n numbers (omit leading 0's).

Table of values

n a(n)
1 1
2 23
3 456
4 78910
5 1112131415
6 161718192021
7 22232425262728
8 2930313233343536
9 373839404142434445
10 46474849505152535455
11 5657585960616263646566
12 676869707172737475767778
13 79808182838485868788899091
14 9293949596979899100101102103104105
15 106107108109110111112113114115116117118119120

List of values

[1, 23, 456, 78910, 1112131415, 161718192021, 22232425262728, 2930313233343536, 373839404142434445, 46474849505152535455, 5657585960616263646566, 676869707172737475767778, 79808182838485868788899091, 9293949596979899100101102103104105, 106107108109110111112113114115116117118119120]

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

Content is available under The OEIS End-User License Agreement.