Triangle of integers related to generalized Markov numbers, read by rows.

Terms

a(0) =3a(1) =13a(2) =51a(3) =61a(4) =217a(5) =846a(6) =291a(7) =1001a(8) =3673a(9) =14637a(10) =1393a(11) =4683a(12) =16693a(13) =62221a(14) =247965a(15) =6673a(16) =22265a(17) =77064a(18) =282317a(19) =1054081a(20) =4200768a(21) =31971a(22) =106153a(23) =360517a(24) =1285131a(25) =4778353a(26) =17857153a(27) =71165091