Number of matchings in the n-Plummer-Toft graph.

Terms

a(0) =32a(1) =71a(2) =153a(3) =320a(4) =651a(5) =1297a(6) =2536a(7) =4883a(8) =9277a(9) =17424a(10) =32399a(11) =59717a(12) =109216a(13) =198367a(14) =358065a(15) =642736a(16) =1147923a(17) =2040809a(18) =3613064a(19) =6372139a(20) =11198645a(21) =19617120a(22) =34261015a(23) =59669821a(24) =103653344a(25) =179623031a(26) =310569993a(27) =535843424a(28) =922685595a(29) =1585836673