Row 3 of A018219, i.e., (3,n,a_n) is a winning position.

Terms

a(0) =5a(1) =3a(2) =8a(3) =1a(4) =4a(5) =0a(6) =9a(7) =11a(8) =2a(9) =6a(10) =18a(11) =7a(12) =13a(13) =12a(14) =27a(15) =22a(16) =25a(17) =29a(18) =10a(19) =33a(20) =30a(21) =38a(22) =15a(23) =39a(24) =35a(25) =16a(26) =44a(27) =14a(28) =43a(29) =17