a(n) = A073145(n)^2.

Terms

a(0) =9a(1) =1a(2) =1a(3) =25a(4) =25a(5) =1a(6) =121a(7) =225a(8) =9a(9) =529a(10) =1681a(11) =441a(12) =1849a(13) =11025a(14) =6889a(15) =4225a(16) =64009a(17) =73441a(18) =2209a(19) =326041a(20) =632025a(21) =31329a(22) =1413721a(23) =4669921a(24) =1320201a(25) =4844401a(26) =30371121a(27) =19882681a(28) =10582009a(29) =174847729