Triangle read by rows: T(n,k) (1 <= k <= n) = number of monomer-dimer tilings of an n X k board.

Terms

a(0) =1a(1) =2a(2) =7a(3) =3a(4) =22a(5) =131a(6) =5a(7) =71a(8) =823a(9) =10012a(10) =8a(11) =228a(12) =5096a(13) =120465a(14) =2810694a(15) =13a(16) =733a(17) =31687a(18) =1453535a(19) =65805403a(20) =2989126727a(21) =21a(22) =2356a(23) =196785a(24) =17525619a(25) =1539222016a(26) =135658637925a(28) =34a(29) =7573a(30) =1222550