Number of 2's in the last section of the set of partitions of n.

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =2a(5) =1a(6) =4a(7) =3a(8) =8a(9) =7a(10) =15a(11) =15a(12) =27a(13) =29a(14) =48a(15) =53a(16) =82a(17) =94a(18) =137a(19) =160a(20) =225a(21) =265a(22) =362a(23) =430a(24) =572a(25) =683a(26) =892a(27) =1066a(28) =1370a(29) =1640