A053958 Numbers k such that k^2 contains only digits {4,6,8}.
2, 8, 22, 92, 262, 2978, 258238, 805262, 9191762, 81784378, 696037692, 2546858238, 93095030408, 2620848420738, 26204321529981784378
Offset: 1
Links
- Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences.
- Hisanori Mishima, Sporadic tridigital solutions.
- Author?, Source(txt)
Crossrefs
Cf. A053959.
Extensions
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005
One more term from Jon E. Schoenfield, Sep 04 2006
a(15) from Mishima's website added by Elmo R. Oliveira, Jul 16 2025