Beatty sequence for sqrt(5).

Terms

a(0) =2a(1) =4a(2) =6a(3) =8a(4) =11a(5) =13a(6) =15a(7) =17a(8) =20a(9) =22a(10) =24a(11) =26a(12) =29a(13) =31a(14) =33a(15) =35a(16) =38a(17) =40a(18) =42a(19) =44a(20) =46a(21) =49a(22) =51a(23) =53a(24) =55a(25) =58a(26) =60a(27) =62a(28) =64a(29) =67