Sizes of successive clusters in Z^4 lattice.

Terms

a(0) =1a(1) =9a(2) =33a(3) =65a(4) =89a(5) =137a(6) =233a(7) =297a(8) =321a(9) =425a(10) =569a(11) =665a(12) =761a(13) =873a(14) =1065a(15) =1257a(16) =1281a(17) =1425a(18) =1737a(19) =1897a(20) =2041a(21) =2297a(22) =2585a(23) =2777a(24) =2873a(25) =3121a(26) =3457a(27) =3777a(28) =3969a(29) =4209