How many permutation can I make with 5 numbers with order.
e. The first number can be 1-34.
The last number can be 35-69.
The first group of permutations is.
if first slot is 1 and the last slot is 35.
The second slot is 2 and the third is 3. The fourth slot can be 4-34.
1 2 3 (4-34) 35
1 2 4 (5-34) 35
.....
How do I calculate without brute forcing the answer?
Another permutation
We have 6 sets
[1-10]
[11-22]
[23-34]
[35-46]
[47-58]
[59-69]
A permutation may not have 4 or 5 numbers from 1 set.