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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A204140 Numbers m such that both m and 7m are zeroless pandigital numbers (A050289).

Original entry on oeis.org

123456789, 123678459, 123875649, 124563789, 124789563, 127593468, 127638945, 127648953, 132487695, 132596478, 134526789, 135246879, 135926748, 135947826, 136245978, 136597482, 136758924, 136875249, 137645982, 137689245, 137826459, 138752649, 138795462, 138976452
Offset: 1

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Author

Zak Seidov, Jan 11 2012

Keywords

Comments

There are precisely 24 such numbers.
The only number m such that m and 8m are zeroless pandigital numbers is A050289(1)=123456789.

Crossrefs

Cf. A050289, A204141.

Formula

a(n) = A204141(n)/7.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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