OFFSET
1,1
COMMENTS
Includes all odd numbers > 1. - Robert Israel, Feb 05 2016
LINKS
MAPLE
f:= proc(n) local L, m;
if n::odd then return true fi;
L:= convert(n, base, 2);
for m from 2 to nops(L)-1 do
if L[1..m] = L[-m..-1] then return true fi;
od:
false
end proc:
select(f, [$2..101]); # Robert Israel, Feb 05 2016
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Dec 17 2003
STATUS
approved