Number of prime polyominoes with n cells.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =1a(5) =12a(6) =5a(7) =108a(8) =145a(9) =974a(10) =2210a(11) =17073a(12) =31950a(13) =238591a(14) =587036a(15) =3174686a(16) =9236343a(17) =50107909