First row of Modified Schroeder numbers for q=5 (A114293).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =13a(6) =42a(7) =150a(8) =553a(9) =2202a(10) =9233a(11) =39726a(12) =176932a(13) =810798a(14) =3786137a(15) =18022100a(16) =87265298a(17) =428202617a(18) =2127088358a(19) =10684752474a(20) =54181245592a(21) =277101480826