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.

A053928 Numbers k such that k^2 contains only digits {2,5,9}.

Original entry on oeis.org

3, 5, 15, 23, 77, 173, 235, 315, 1515, 2435, 7227, 23515, 54335, 97773, 243515, 2435077, 3090673, 72497765, 74533585, 9639636523, 979793819766485, 77170285247817565, 9794365502654705173, 1598601020441309256565, 30484348812550551609088485, 76975943837016723668817565
Offset: 1

Views

Author

Patrick De Geest, Mar 15 2000

Keywords

Crossrefs

Cf. A053929.

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
a(21)-a(24) from Mishima's page added by Max Alekseyev, Aug 18 2013
More terms from Zhao Hui Du, Mar 01 2024