A104341 - OEIS

%I #7 Jul 22 2021 04:45:25

%S 10,21,32,43,54,65,76,87,98

%N Numbers n such that n -(digital reversal of n) = 9.

%C The sequence is complete: there is no other such number (in base 10). Starting with n=2, A104341(n) = digital reversal of A104341(n-1).

%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>

%F n -(digital reversal of n) = 9

%e 98-89=9.

%t npdrnQ[n_]:=n-FromDigits[Reverse[IntegerDigits[n]]]==9; Select[Range[100], npdrnQ] (* _Harvey P. Dale_, Apr 04 2013 *)

%Y Cf. A104340, A346261.

%K base,nonn,fini,full

%O 1,1

%A _Zak Seidov_, Mar 02 2005