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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A204058 Largest integer m such that both m and n*m are decimal pandigital numbers (A050278).

Original entry on oeis.org

9876543210, 4938271605, 3291768054, 2469135780, 1975308642, 1645839027, 1409632875, 1234567890, 1097368245
Offset: 1

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Author

Zak Seidov, Jan 10 2012

Keywords

Comments

Corresponding indices of a(n) in A050278 are 3265920, 1430987, 842972, 508475, 355944, 219427, 125670, 46234, 39091.
Also corresponding values of n*a(n) are 9876543210, 9876543210, 9875304162, 9876543120, 9876543210, 9875034162, 9867430125, 9876543120, 9876314205.

Crossrefs

Cf. A050278, A203987, A204045.

A204085 Consider integers m such that both m and 2m are decimal pandigital numbers (A050278). The sequence gives indices of m in A050278.

Original entry on oeis.org

1, 3, 7, 9, 13, 15, 25, 27, 31, 33, 37, 39, 49, 51, 55, 57, 61, 63, 73, 75, 79, 81, 85, 87, 153, 155, 156, 157, 163, 166, 177, 179, 180, 181, 187, 190, 193, 195, 217, 219, 226, 232, 273, 275, 276, 277, 283, 286, 297, 299, 300, 301, 307, 310, 313, 315, 337
Offset: 1

Views

Author

Zak Seidov, Jan 10 2012

Keywords

Comments

The sequence consists of 184320 terms, the last is a(184320) = 1430987 and the largest m = A050278(1430987) = 4938271605 and corresponding 2m = A050278(3265920) = 9876543210 the largest decimal pandigital number.

Crossrefs

Cf. A050278, A203987, A204045, A204058.
Showing 1-2 of 2 results.

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