OFFSET
1,3
COMMENTS
Numbers that are still numbers when viewed in a mirror, writing 2 and 5 as in calculator displays.
REFERENCES
P. Giannopoulos, The Brainteasers, unpublished
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..3000
MATHEMATICA
FromDigits/@Tuples[{0, 1, 2, 5, 8}, 3] (* Harvey P. Dale, Sep 10 2017 *)
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Giannopoulos P. (pgiannop1(AT)yahoo.com), Mar 17 2003
EXTENSIONS
More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003
Offset corrected by Arkadiusz Wesolowski, Sep 23 2011
STATUS
approved