Upper Wythoff sequence (a Beatty sequence): a(n) = floor(n*phi^2), where phi = (1+sqrt(5))/2.

Terms

a(0) =2a(1) =5a(2) =7a(3) =10a(4) =13a(5) =15a(6) =18a(7) =20a(8) =23a(9) =26a(10) =28a(11) =31a(12) =34a(13) =36a(14) =39a(15) =41a(16) =44a(17) =47a(18) =49a(19) =52a(20) =54a(21) =57a(22) =60a(23) =62a(24) =65a(25) =68a(26) =70a(27) =73a(28) =75a(29) =78