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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.

A334620 a(n) is the smallest multiple of n formed by the concatenation 1,2,3,...,k for some k.

Table of values

n a(n)
1 1
2 12
3 12
4 12
5 12345
6 12
7 1234567891011
8 123456
9 12345678
10 12345678910
11 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106
12 12

List of values

[1, 12, 12, 12, 12345, 12, 1234567891011, 123456, 12345678, 12345678910, 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106, 12]

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

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