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.

A067504 Powers of 7 with digit sum also a power of 7.

Original entry on oeis.org

1, 7, 2401, 1977326743
Offset: 1

Views

Author

Amarnath Murthy, Feb 11 2002

Keywords

Comments

Next terms are 7^4433, 7^30810. - Sascha Kurz, Mar 18 2002

Crossrefs

Cf. A067499, A067500, A067501, A067502, A067503.
Subsequence of A000420.

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