Central terms of triangle A114172 found in even-indexed rows.

A114174

Central terms of triangle A114172 found in even-indexed rows.

Terms

    a(0) =1a(1) =3a(2) =16a(3) =95a(4) =601a(5) =3951a(6) =26650a(7) =183043a(8) =1274080a(9) =8959268a(10) =63512890a(11) =453227590a(12) =3252065077a(13) =23443729683a(14) =169680654790

External references