Which of the following numbers will replace the question mark (?) in the given series

Which of the following numbers will replace the question mark (?) in the given series?

10, 21, 35, 56, 90, 145, 231, 360, ?

A. 436

B. 546

C. 463

D. 564

Sol:

Pattern follows here is:

Required number is = 360+186 = 546.