Number of binary strings of length n with equal numbers of 0011 and 0101 substrings.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =14a(5) =24a(6) =41a(7) =68a(8) =113a(9) =192a(10) =333a(11) =596a(12) =1106a(13) =2110a(14) =4108a(15) =8104a(16) =16073a(17) =31894a(18) =63160a(19) =124644a(20) =245071a(21) =480334a(22) =939230a(23) =1833912a(24) =3579000a(25) =6986336a(26) =13648481a(27) =26694632a(28) =52280853a(29) =102529288