A053910 Numbers k such that k^2 contains only digits {1,6,9}.

1, 3, 4, 13, 14, 31, 263, 264, 3114, 4119, 24737, 81619, 834386, 1382737, 9959514, 10775719, 341608987, 836460469, 998053937, 24737858031, 40201507014, 99599046013, 2488372283063, 8361615872313

Offset: 1

Author

Patrick De Geest, Mar 15 2000

Keywords

• nonn
• base

Links

• Zhao Hui Du, Table of n, a(n) for n = 1..31
• Author?, Source(txt)
• Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences

Crossrefs

Cf. A053911.

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

Two more terms from Jon E. Schoenfield, Sep 03 2006