Triangle read by rows: number of meanders filling out an n X k grid.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =0a(6) =0a(7) =1a(8) =1a(9) =4a(10) =0a(11) =1a(12) =1a(13) =14a(14) =42a(15) =0a(16) =1a(17) =3a(18) =63a(19) =843a(20) =9050a(21) =0a(22) =1a(23) =3a(24) =224a(25) =7506a(26) =342743a(27) =6965359a(28) =0a(29) =1