Number of symmetrically inequivalent coincidence rotations of index n in lattice Z^4.

Terms

a(0) =1a(1) =2a(2) =16a(3) =0a(4) =36a(5) =32a(6) =64a(7) =0a(8) =168a(9) =72a(10) =144a(11) =0a(12) =196a(13) =128a(14) =576a(15) =0a(16) =324a(17) =336a(18) =400a(19) =0a(20) =1024a(21) =288a(22) =576a(23) =0a(24) =960a(25) =392a(26) =1584a(27) =0a(28) =900a(29) =1152