Total number of parts in the tails below the Durfee squares of all partitions of n.

Terms

a(0) =0a(1) =1a(2) =3a(3) =6a(4) =11a(5) =19a(6) =31a(7) =50a(8) =76a(9) =116a(10) =169a(11) =247a(12) =349a(13) =494a(14) =682a(15) =941a(16) =1274a(17) =1724a(18) =2296a(19) =3054a(20) =4014a(21) =5263a(22) =6833a(23) =8854a(24) =11373a(25) =14578a(26) =18556a(27) =23561a(28) =29736a(29) =37447