Number of binary strings of length n with no substrings equal to 0011 0101 or 1010.

Terms

a(0) =13a(1) =22a(2) =36a(3) =58a(4) =93a(5) =148a(6) =234a(7) =368a(8) =576a(9) =898a(10) =1395a(11) =2160a(12) =3335a(13) =5136a(14) =7891a(15) =12098a(16) =18512a(17) =28276a(18) =43119a(19) =65654a(20) =99826a(21) =151586a(22) =229904a(23) =348290a(24) =527077a(25) =796846a(26) =1203561a(27) =1816264a(28) =2738601a(29) =4126078