Number of distinct lines through the origin in 5-dimensional cube of side length n.

Terms

a(0) =0a(1) =31a(2) =211a(3) =961a(4) =2851a(5) =7471a(6) =15541a(7) =31471a(8) =55651a(9) =95821a(10) =152041a(11) =239791a(12) =351331a(13) =517831a(14) =723241a(15) =1007041a(16) =1352041a(17) =1821721a(18) =2359051a(19) =3082921a(20) =3904081a(21) =4956901a(22) =6151651a(23) =7677901a(24) =9334261a(25) =11445361a(26) =13746181a(27) =16566691a(28) =19644031a(29) =23432851