Nim product 5 * n.

Terms

a(0) =0a(1) =5a(2) =10a(3) =15a(4) =2a(5) =7a(6) =8a(7) =13a(8) =3a(9) =6a(10) =9a(11) =12a(12) =1a(13) =4a(14) =11a(15) =14a(16) =80a(17) =85a(18) =90a(19) =95a(20) =82a(21) =87a(22) =88a(23) =93a(24) =83a(25) =86a(26) =89a(27) =92a(28) =81a(29) =84