Number of points of L1 norm 9 in cubic lattice Z^n.

Terms

a(0) =0a(1) =2a(2) =36a(3) =326a(4) =1992a(5) =9290a(6) =35436a(7) =115598a(8) =332688a(9) =864146a(10) =2060980a(11) =4573910a(12) =9545560a(13) =18892250a(14) =35704060a(15) =64797470a(16) =113461024a(17) =192441122a(18) =317222212a(19) =509663334a(20) =800061160a(21) =1229718378a(22) =1854105484a(23) =2746713774a(24) =4003707568