Seventh column of Catalan triangle A009766.

Terms

a(0) =132a(1) =429a(2) =1001a(3) =2002a(4) =3640a(5) =6188a(6) =9996a(7) =15504a(8) =23256a(9) =33915a(10) =48279a(11) =67298a(12) =92092a(13) =123970a(14) =164450a(15) =215280a(16) =278460a(17) =356265a(18) =451269a(19) =566370a(20) =704816a(21) =870232a(22) =1066648a(23) =1298528a(24) =1570800a(25) =1888887a(26) =2258739a(27) =2686866a(28) =3180372a(29) =3746990