# What is the pattern in the sequence 1, 1, 0, -1, 0, 7, 28, 79, 192?

##### 1 Answer

Jul 31, 2015

#### Explanation:

Start with the sequence:

Form the sequence of differences:

Then the sequence of differences of those differences:

Then the sequence of differences of those differences:

Subtract this from the original sequence to get:

This is obviously a sequence of negated square numbers.

So