%I

%S 6,22,30,41,44,50,52,80,86,89,96,98,112,115,121,142,156,173,177,257,

%T 270,295,303,326,337,343,349,355,361,370,380,383,387,400,402,409,419,

%U 421,424,449,452,454,463,473,490,500

%N Numbers that occur in runs of length 1 in A037203.

%e A037201 contains "...,5,5,"6",7,7,7,7,7...", with a single 6; so a(1)=6.

%K easy,nonn

%O 0,1

%A _Naohiro Nomoto_