Floor of entry (2,1) of [0,1; 1,phi]^n.

Terms

a(0) =1a(1) =1a(2) =3a(3) =7a(4) =15a(5) =32a(6) =68a(7) =144a(8) =302a(9) =633a(10) =1328a(11) =2783a(12) =5832a(13) =12219a(14) =25604a(15) =53648a(16) =112408a(17) =235529a(18) =493503a(19) =1034034a(20) =2166605a(21) =4539674a(22) =9511953a(23) =19930339a(24) =41759920a(25) =87499309a(26) =183336777a(27) =384144447a(28) =804895549a(29) =1686492803