login
A053900
Numbers k such that k^2 contains only digits {1,4,8}.
2
1, 2, 9, 12, 21, 22, 29, 38, 109, 122, 221, 1191, 20359, 12017441, 64352012, 69362229, 105741122, 1347014779, 10715008859, 664190348029, 940313186572, 4263966676478, 34479242283029, 1055656895701022, 2968363385585478
OFFSET
1,2
CROSSREFS
Cf. A053901.
Sequence in context: A070226 A273669 A129829 * A318681 A183207 A347496
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
Two more terms from Jon E. Schoenfield, Sep 03 2006
Further terms from Mishima's webpage added by Max Alekseyev, May 29 2009
STATUS
approved