Number of partitions of n^2 into exactly n nonzero squares.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =1a(6) =4a(7) =4a(8) =9a(9) =16a(10) =24a(11) =52a(12) =83a(13) =152a(14) =305a(15) =515a(16) =959a(17) =1773a(18) =3105a(19) =5724a(20) =10255a(21) =18056a(22) =32584a(23) =58082a(24) =101719a(25) =179306a(26) =317610a(27) =552730a(28) =962134a(29) =1683435