%I #4 Mar 30 2012 18:55:34
%S 10,11,12,13,14,15,16,17,18,19,1011,21,1211,1311,1411,1511,1611,1711,
%T 1811,1911,1012,1112,22,1312,1412,1512,1612,1712,1812,1912,1013,1113,
%U 1213,23,1413,1513,1613,1713,1813,1913,1014,1114,1214,1314,24,1514,1614
%N Describe n from right to left.
%Y Cf. A047842.
%K easy,nonn,base
%O 0,1
%A _Odimar Fabeny_, Aug 29 2004
%E More terms from _Robert G. Wilson v_, Aug 30 2004