Numbers having three 1's in their base-phi representation.

Terms

a(0) =4a(1) =5a(2) =6a(3) =8a(4) =19a(5) =48a(6) =124a(7) =323a(8) =844a(9) =2208a(10) =5779a(11) =15128a(12) =39604a(13) =103683a(14) =271444a(15) =710648a(16) =1860499a(17) =4870848a(18) =12752044a(19) =33385283a(20) =87403804a(21) =228826128a(22) =599074579a(23) =1568397608a(24) =4106118244a(25) =10749957123a(26) =28143753124a(27) =73681302248