you've got to be kidding. You want to be a market maker???
15, 29, 56, 108, 208 ...... double -1, double -2, double -4, double - 8 and so on....
13, -21, 34, -55, 89 ...... add preceding two numbers and change sign
52, 56, 48, 64, 32..... up 4, down 8, up 16, down 32, up 64 and so on