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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A050735 Numbers of form 5^k (values of k see A050726) containing no pair of consecutive equal digits (probably finite).

Original entry on oeis.org

1, 5, 25, 125, 625, 3125, 15625, 78125, 390625, 1953125, 9765625, 6103515625, 30517578125, 152587890625, 762939453125, 3814697265625, 19073486328125, 95367431640625, 476837158203125, 2384185791015625, 7450580596923828125
Offset: 0

Views

Author

Patrick De Geest, Sep 15 1999

Keywords

Comments

The largest term may be 5^32=23283064365386962890625; there are no further terms up to and including 5^10,000. - Harvey P. Dale, Feb 11 2025

Crossrefs

Subsequence of A000351.
Cf. A043096, A050726.

Programs

  • Mathematica
    Select[5^Range[0,100],FreeQ[Differences[IntegerDigits[#]],0]&] (* Harvey P. Dale, Feb 11 2025 *)
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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