Dissections: bisection of A047771.

Terms

a(0) =0a(1) =0a(2) =1a(3) =8a(4) =42a(5) =232a(6) =1277a(7) =7183a(8) =41041a(9) =238315a(10) =1402076a(11) =8343804a(12) =50136483a(13) =303790544a(14) =1854115285a(15) =11388104153a(16) =70338364135a(17) =436605050440