First row of Modified Schroeder numbers for q=7 (A114294).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =5a(6) =13a(7) =34a(8) =110a(9) =393a(10) =1449a(11) =5390a(12) =21534a(13) =90418a(14) =389265a(15) =1694769a(16) =7593330a(17) =34910142a(18) =163314286a(19) =772044618a(20) =3702870682a(21) =18017064221a(22) =88689351909a(23) =440271808570