Now that you've done that, I can add that the nth term of the sequence is (11n/6)(n²-1).

]]>Their differences are 11, 33, 66, 110.

The differences of their differences are 22, 33, 44.

The next number in the series, for example, would be 55 + 110 + 220, which equals 385.

See the rule?]]>

I Need To Find The Rule For These Numbers O, 11, 44, 110, 220. Please Help!!]]>