Which comes closest to the next number in the sequence - 0; 9; 144; 21,609; ?

Question

What number comes next in this sequence: 1 4 8 13 21 30 36 ??

Answer 1

The series can be explained as follows
Any intermediate term is obtained by squaring the sum of previous term and 3.
0, (0+3)^(2), (9+3)^(2), (144+3)^(2), (21609+3)^(2)
Therefore the next term in the sequence is
(21609 + 3)^(2) = (21612)^(2) = 467,078,544.