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

1,1

Links

Table of n, a(n) for n=1..11.

Patrick De Geest, Index to related sequences.

Hisanori Mishima, Sporadic tridigital solutions.

Crossrefs

Cf. A058428.

Sequence in context: A003551 A054643 A122535 * A142293 A052187 A260219

Adjacent sequences: A058424 A058425 A058426 * A058428 A058429 A058430

Keyword

nonn,base,hard,more

Author

Patrick De Geest, Nov 15 2000

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

Status

approved