c# - Finding missing number in a sequence -

i need find 1 missing number, sequence of numbers

such as

4 8 12 16 __ 24.

i need find missing number. how programmatically?

the numbers , missing placement not static, should able change.

hope possible.

you use silly linq silly example :)

var numbers = new list<int>{4, 8, 12, 16, 24, 28, 36}; int first = numbers.first(); int last = numbers.last();  var missing = enumerable.range(first, last).where(n => n % first == 0).except(numbers);   returns: 20 32 

-bracing self downvotes-