Number of 4 X n Fibonacci minimal checkerboards.

Terms

a(0) =1a(1) =15a(2) =50a(3) =254a(4) =1202a(5) =5774a(6) =27650a(7) =132494a(8) =634802a(9) =3041534a(10) =14572850a(11) =69822734a(12) =334540802a(13) =1602881294a(14) =7679865650a(15) =36796446974a(16) =176302369202a(17) =844715399054