Number of 5-divided binary words of length n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =6a(9) =36a(10) =150a(11) =464a(12) =1304a(13) =3349a(14) =8213a(15) =19230a(16) =43867a(17) =97644a(18) =213776a(19) =461240a(20) =984603a(21) =2082436