Number of points of L1 norm 6 in cubic lattice Z^n.

Terms

a(0) =0a(1) =2a(2) =24a(3) =146a(4) =608a(5) =1970a(6) =5336a(7) =12642a(8) =27008a(9) =53154a(10) =97880a(11) =170610a(12) =284000a(13) =454610a(14) =703640a(15) =1057730a(16) =1549824a(17) =2220098a(18) =3116952a(19) =4298066a(20) =5831520a(21) =7796978a(22) =10286936a(23) =13408034a(24) =17282432a(25) =22049250a(26) =27866072a(27) =34910514a(28) =43381856a(29) =53502738