A027679 When squared gives number composed of digits {2,4,8} with each of these digits appearing at least once.
168, 478, 2878, 210912978, 15647628653832, 1511583350076478, 6548620039541478, 669644852476481662, 20597146608802018338, 53710727465081333454522, 2069416058768323727702022, 149140498954591218312271662, 20598117118436403877526792022
Offset: 1
Links
- Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
- Patrick De Geest, Palindromic Squares in bases 2 to 17
- H. Mishima, Squares consisted of 3 different digits.
- A. Ottens, The arithmetic-digits-squares-three.digits problem
- Eric Weisstein's World of Mathematics, Square Number.
Crossrefs
Cf. A027678.
Extensions
One more term from Jon E. Schoenfield, Sep 04 2006
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 19 2007
Title improved by Sean A. Irvine, Nov 24 2019
a(12)-a(13) from Zhao Hui Du, Mar 09 2024