OFFSET
1,1
COMMENTS
For any n>0, a(n) is finite (or zero) and a(0) is infinite (because there are an infinite number of palindromes).
EXAMPLE
a(8)=2 because there are only two integers m such that m - (digit reversal of m) = 9*8=72, namely 80 and 91: 80-(08)=80-8=72 and 91-19=72.
MATHEMATICA
A104348=Table[Select[Range[0, 40000], (FromDigits[Reverse[IntegerDigits[ # ]]]-#)/9==-k&]//Length, {k, 100}]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Zak Seidov, Mar 02 2005
STATUS
approved