a(n) = [ 1/{n*sqrt(7)} ], where {x} := x - [ x ].

Terms

a(0) =1a(1) =3a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =6a(8) =1a(9) =2a(10) =9a(11) =1a(12) =2a(13) =24a(14) =1a(15) =3a(16) =1a(17) =1a(18) =3a(19) =1a(20) =1a(21) =4a(22) =1a(23) =2a(24) =6a(25) =1a(26) =2a(27) =12a(28) =1a(29) =2