cp's OEIS Frontend

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.

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A319548 Indices of record values in A039932.

Original entry on oeis.org

1, 3, 4, 7, 14, 22, 23, 38, 43, 44, 48, 97, 150, 243, 443, 444, 667, 668, 1244, 2443, 4443, 4444
Offset: 1

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Author

David Radcliffe, Sep 22 2018

Keywords

Comments

A positive integer k belongs to the sequence iff there exists a positive integer n so that each of the first k multiples of n contains the decimal digit 1, but (k+1)*n does not contain the decimal digit 1, and no smaller value of n has this property for the same value of k.

Examples

			3 is a term because the first three multiples of 51 (51, 102, 153) all contain the decimal digit 1, and this is the unique longest sequence of this kind whose first term is 51 or less.

Crossrefs

Cf. A039932, A319542.

Formula

A039932(a(n)) = A319542(n).
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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