1, 3, 10, 21, 64, 129, 356, 777

1.	1, 3, 10, 21, 64, 129, 356, 777
Answer» A x 2 + 1, B x 3 + 1, C x 2 + 1, D x 3 + 1 and so on. So, 356 is wrong.

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