Nimsum n + 10.

Terms

a(0) =10a(1) =11a(2) =8a(3) =9a(4) =14a(5) =15a(6) =12a(7) =13a(8) =2a(9) =3a(10) =0a(11) =1a(12) =6a(13) =7a(14) =4a(15) =5a(16) =26a(17) =27a(18) =24a(19) =25a(20) =30a(21) =31a(22) =28a(23) =29a(24) =18a(25) =19a(26) =16a(27) =17a(28) =22a(29) =23