Hello.

I'm trying to find a formula to find the number of possible results.

Items:

- BLANK
- _B
- _I
- _U
- _Brd

Order matters and no reputation. Looking for all unique possibilities.

NAME (THIS NEVER CHANGES AND CAN BE IGNORED)

1.58mm(1/16)_Op

Example output:

1.58mm(1/16)_Op

1.58mm(1/16)_Op_B

1.58mm(1/16)_Op_B_I

I tried to write them all out and i think there is 14?

Any

help would be great.

Thanks