Here is a cool sequence.

1,10,101,1020,10301,______,_______...

What numbers go in the two blanks?

sequence is n*10 plus the number before n, so let's try this. first number 1 times 10 plus number before one which does not exist so number after the first one is 10, then 10 time 10 plus the the number before 10, that equals 101, so next will be 101*10+10=1020, 1020*10+101=10301, next two are 104030, 1050601,...

Posted by Mark on 2003-05-07 18:12:02