%I #5 Dec 05 2013 19:55:52
%S 25,5,3,1,8,6,4,2,9,7,14,12,19,17,24,22,47,72,97,122,147,172,197,222,
%T 247,497,747,997,1247,1497,1747,1997,2247,2497,4997,7497,9997,12497,
%U 14997,17497,19997,22497,24997,49997,74997,99997,124997,149997,174997
%N a(n) = smallest k such that 4k has a digit sum = n.
%F A077489(n)/4
%Y Cf. A077489, A069532, A069534.
%K base,nonn
%O 1,1
%A _Amarnath Murthy_, Nov 07 2002
%E Corrected and extended by _Sascha Kurz_, Feb 10 2003