Number of maximal matchings in the n-web graph.

Terms

a(0) =1a(1) =9a(2) =22a(3) =53a(4) =166a(5) =432a(6) =1212a(7) =3341a(8) =9175a(9) =25364a(10) =69829a(11) =192560a(12) =530830a(13) =1463170a(14) =4033687a(15) =11119101a(16) =30651528a(17) =84495213a(18) =232922084a(19) =642082488a(20) =1769987094a(21) =4879211973a(22) =13450215173a(23) =37077354584a(24) =102208799091a(25) =281752521488a(26) =776689338352