Numbers to the right of the central elements of the (2,3)-Pascal triangle A029600.

Terms

a(0) =3a(1) =3a(2) =8a(3) =3a(4) =11a(5) =3a(6) =26a(7) =14a(8) =3a(9) =40a(10) =17a(11) =3a(12) =90a(13) =57a(14) =20a(15) =3a(16) =147a(17) =77a(18) =23a(19) =3a(20) =322a(21) =224a(22) =100a(23) =26a(24) =3a(25) =546a(26) =324a(27) =126a(28) =29a(29) =3