Dirichlet convolution of squares with themselves.

Terms

a(0) =1a(1) =8a(2) =18a(3) =48a(4) =50a(5) =144a(6) =98a(7) =256a(8) =243a(9) =400a(10) =242a(11) =864a(12) =338a(13) =784a(14) =900a(15) =1280a(16) =578a(17) =1944a(18) =722a(19) =2400a(20) =1764a(21) =1936a(22) =1058a(23) =4608a(24) =1875a(25) =2704a(26) =2916a(27) =4704a(28) =1682a(29) =7200