Number of partitions of n into two sorts of parts having exactly 3 parts of the second sort.

Terms

a(0) =1a(1) =5a(2) =16a(3) =41a(4) =91a(5) =186a(6) =351a(7) =635a(8) =1090a(9) =1824a(10) =2939a(11) =4652a(12) =7162a(13) =10875a(14) =16159a(15) =23758a(16) =34321a(17) =49145a(18) =69389a(19) =97213a(20) =134608a(21) =185172a(22) =252182a(23) =341443a(24) =458413a(25) =612186a(26) =811567a(27) =1070826a(28) =1403784a(29) =1832370