A053902 Numbers k such that k^2 contains only digits {1,5,6}.

1, 4, 34, 81, 334, 746, 2581, 3334, 12869, 33334, 39581, 81619, 333334, 1245454, 1249666, 3333334, 12496666, 33333334, 333333334, 2261749666, 3333333334, 3939100869, 12851113246, 22706069919, 33333333334, 78493000746

Offset: 1

Author

Patrick De Geest, Mar 15 2000

Keywords

• nonn
• base

Links

• Zhao Hui Du, Table of n, a(n) for n = 1..55
• Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
• Author?, Source(txt)

Crossrefs

Cf. A053903.

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005