OFFSET
1,1
COMMENTS
For n>0, 10^n-1 is a term (that is, A002283 except 0). - Michel Marcus, Nov 25 2014
LINKS
Ana Rechtman, Septembre 2019, 3e défi, Images des Mathématiques, CNRS, 2019 (in French).
EXAMPLE
741 = 3 * 247 = 3 * R(742) = 3 * R(741+1).
PROG
(PARI) isok(n) = ! (n % subst(Polrev(digits(n+1)), x, 10)); \\ Michel Marcus, Nov 24 2014
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Claudio Meller, May 30 2009
EXTENSIONS
More terms from Claudio Meller, Jun 19 2009
a(24)-a(31) from Paolo P. Lava, Nov 24 2014
STATUS
approved