Number of maximal matchings in the n-gear graph.

Terms

a(0) =3a(1) =6a(2) =11a(3) =22a(4) =47a(5) =98a(6) =198a(7) =394a(8) =776a(9) =1512a(10) =2917a(11) =5582a(12) =10610a(13) =20050a(14) =37697a(15) =70562a(16) =131565a(17) =244460a(18) =452829a(19) =836482a(20) =1541318a(21) =2833624a(22) =5198692a(23) =9519722a(24) =17402027a(25) =31759964a(26) =57878498a(27) =105331522a(28) =191445503a(29) =347548382