A058456 Squares composed of digits {0,8,9}, not ending with zero.
9, 80089, 90809009099908808089808090889, 89898988900998890088080098089989880890999988989999809
Offset: 1
Links
- Patrick De Geest, Index to related sequences.
- Hisanori Mishima, Sporadic tridigital solutions.
Crossrefs
Cf. A058455.
Formula
a(n) = A058455(n)^2. - Elmo R. Oliveira, Jul 18 2025
Extensions
a(4) from Zhao Hui Du, Feb 28 2024