Sum of the three largest parts in the partitions of 4n into 4 parts.

Terms

a(0) =3a(1) =34a(2) =159a(3) =489a(4) =1161a(5) =2365a(6) =4336a(7) =7323a(8) =11640a(9) =17646a(10) =25702a(11) =36246a(12) =49761a(13) =66720a(14) =87685a(15) =113263a(16) =144039a(17) =180699a(18) =223974a(19) =274561a(20) =333270a(21) =400956a(22) =478428a(23) =566620a(24) =666511a(25) =779022a(26) =905211a(27) =1046181a(28) =1202965a(29) =1376745