<P> In mathematics, the look - and - say sequence is the sequence of integers beginning as follows: </P> <Dl> <Dd> 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211,...(sequence A005150 in the OEIS). </Dd> </Dl> <Dd> 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211,...(sequence A005150 in the OEIS). </Dd> <P> To generate a member of the sequence from the previous member, read off the digits of the previous member, counting the number of digits in groups of the same digit . For example: </P>

What is the next number in the sequence 1 11 21 osrs