A058426 Squares composed of digits {0,2,5}, not ending with zero.
25, 225, 2025, 55225, 255025, 555025, 2002225, 2205225, 20205025, 25050025, 255520225, 2500500025, 5255525025, 220200255025, 250005000025, 250505255025, 2552022225025, 2555250205225, 20025222252025, 25000050000025, 25005050255025, 25502550500025, 50200555005225
Offset: 1
Links
- Zhao Hui Du, Table of n, a(n) for n = 1..5913
- Patrick De Geest, Index to related sequences.
- Hisanori Mishima, Sporadic tridigital solutions.
Crossrefs
Cf. A058425.
Formula
a(n) = A058425(n)^2. - Elmo R. Oliveira, Jul 16 2025