Thanks for the tip but I still don't quite understand. For example, with the straight I need 3 specific cards, but the specific cards I need depend on the other cards.

Say I had a 45 connector, to make the straight I would need either an A23, 236, 367, 678, but I cant add them up and say i have 12 outs because i need all three of either group.

I wish I was better at maths!