Number of composite Lucas numbers between the prime Lucas numbers A005479(n) and A005479(n+1).

Terms

a(0) =0a(1) =1a(2) =0a(3) =1a(4) =0a(5) =2a(6) =1a(7) =2a(8) =0a(9) =1a(10) =11a(11) =5a(12) =3a(13) =5a(14) =5a(15) =7a(16) =9a(17) =7a(18) =33a(19) =199a(20) =39a(21) =149a(22) =109a(23) =3a(24) =245a(25) =233a(26) =263a(27) =3425a(28) =5a(29) =1057