A053962 Numbers k such that k^2 contains only digits {4,7,8}.
2, 22, 28, 88, 86478, 94227622, 9208064263934568938, 22019193553462506122, 6984617991328143315228383028
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_, Mar 10 2009]
Crossrefs
Cf. A053963.
Extensions
Two more terms from Mishima's page added by Max Alekseyev, Mar 10 2009
a(9) from Zhao Hui Du, Mar 09 2024