Next number in the series is 1 , 2 , 4 , 13 , 31 , 112 , ?
Pick one:	A) 221	B) 222	C) 223	D) 224	E) 225
In   Base 5   1 (1), 2(2) , 4(4) , 13(8) , 31(16) , 112(32) ,224(64)   ANSWER:224
<result>D</result>
Next number in the series is 1 , 2 , 4 , 13 , 31 , 112 , ?