Pattern Recognition - 211

Find out the next number in the series.

135 , 20 , 217 , 21 , 335 , 30 ,468 ,_ ,.................

Answer

135 , 20 , 217 , 21 , 335 , 30 ,468 ,_ ,.................

20 =  (1+3 ) * 5

21 =  (2+1 ) * 7

30 =  (3+3 ) * 5

Next number  (4 + 6) * 8 = 80

135 , 20 , 217 , 21 , 335 , 30 ,468,  80,.................