A058427 Numbers k such that k^2 contains only digits {0,2,9}, not ending with zero.
3, 47, 173, 547, 1703, 538703, 1731828227423, 94916921673747, 96385117673990673, 151400161921673747, 149067065510873088673
Offset: 1
Links
- Patrick De Geest, Index to related sequences.
- Hisanori Mishima, Sporadic tridigital solutions.
Crossrefs
Cf. A058428.
Extensions
a(10) from Herman Jamke (hermanjamke(AT)fastmail.fm), Mar 30 2008
a(11) from Mishima's website added by Elmo R. Oliveira, Jul 16 2025