[0,1,2,11,3,21,111,4,22,31,211,1111,5,32,41,221, 311,2111,11111,6,33,42,51,222,321,411,2211,3111, 21111,111111,7,43,52,61,322,331,421,511,2221,3211, 4111,22111,31111,211111,1111111,8,44,53,62,71,332, 422,431,521]