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2,6,12,20,30, ,56 what is the value in the blank in this sequence?

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2 Answers

John has it right. The difference between each number increases  by 2 each time. Figure out what 30 + 12 is and see if that number fits the pattern (56-14)

The difference between the first and second numbers is 4, between the second and third is 6, between the third and fourth is 8. What do you notice about this? Is it a pattern that continues?