Number of points of L1 norm 5 in cubic lattice Z^n.

Terms

a(0) =0a(1) =2a(2) =20a(3) =102a(4) =360a(5) =1002a(6) =2364a(7) =4942a(8) =9424a(9) =16722a(10) =28004a(11) =44726a(12) =68664a(13) =101946a(14) =147084a(15) =207006a(16) =285088a(17) =385186a(18) =511668a(19) =669446a(20) =864008a(21) =1101450a(22) =1388508a(23) =1732590a(24) =2141808a(25) =2625010a(26) =3191812a(27) =3852630a(28) =4618712a(29) =5502170