A053892 Numbers k such that k^2 contains only digits {1,3,6}.
1, 4, 6, 19, 56, 369, 796, 1146, 1156, 3656, 8131, 19056, 40204, 81619, 258131, 5624381, 24762131, 362789631, 1079982019, 11666754546, 562726517354, 3337114272296, 5624644998854, 18266544874814631, 11537606482136410218512760694
Offset: 1
Links
- Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
- H. Mishima Squares consisted of 3 different digits [From _Max Alekseyev_, May 30 2009]
Crossrefs
Cf. A053893.
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
One more term from Mishima's webpage added by Max Alekseyev, May 30 2009
a(25) from Zhao Hui Du, Mar 09 2024