I've just logged on and really didn't expect this!
Thank you to Rosalind, Seamus, Ixion and FJ for your votes.
Thanks also to Marty for the prizes. Numbers have always fascinated me. I did know the basic Fibonacci sequence and how to multiply by 11 but the rest was all new to me.
I'll do my best to come up with a good challenge for you all next week.
See you then.