a(n) = floor((n+1/2)*(2+sqrt(2))); winning positions in the 2-Wythoff game.

Terms

a(0) =1a(1) =5a(2) =8a(3) =11a(4) =15a(5) =18a(6) =22a(7) =25a(8) =29a(9) =32a(10) =35a(11) =39a(12) =42a(13) =46a(14) =49a(15) =52a(16) =56a(17) =59a(18) =63a(19) =66a(20) =69a(21) =73a(22) =76a(23) =80a(24) =83a(25) =87a(26) =90a(27) =93a(28) =97a(29) =100