Leonard writes down a sequence of numbers. Can you find a formula to predict the seventh number in his sequence?
Weekly Problem 41 - 2012
Consider two arithmetic sequences: 1998, 2005, 2012,... and 1996, 2005, 2014,... Which numbers will appear in both?
If a number is even, halve it; if odd, treble it and add 1. If a sequence starts at 13, what will be the value of the 2008th term?