A053974 Numbers k such that k^2 contains only digits {6,8,9}.
3, 83, 264, 836, 3114, 8167, 98336, 818333, 828667, 994836, 9309617, 984833336, 82885443167, 948097937383, 984879122886, 2588184048685235767383, 99483516217346127185182923658937
Offset: 1
Links
- Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
- Hisanori Mishima, Sporadic tridigital solutions
Crossrefs
Cf. A053975.
Extensions
More terms from Gareth McCaughan, Jun 11 2004
a(16) from Mishima's website, added by Max Alekseyev, Nov 30 2017
a(17) from Zhao Hui Du, Apr 07 2024