a(n) = floor(Fibonacci(n)/7).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =1a(8) =3a(9) =4a(10) =7a(11) =12a(12) =20a(13) =33a(14) =53a(15) =87a(16) =141a(17) =228a(18) =369a(19) =597a(20) =966a(21) =1563a(22) =2530a(23) =4093a(24) =6624a(25) =10717a(26) =17341a(27) =28059a(28) =45401a(29) =73461