Triangle, diagonals generated from Lucas polynomials.

Terms

a(0) =2a(1) =3a(2) =2a(3) =7a(4) =4a(5) =2a(6) =18a(7) =14a(8) =5a(9) =2a(10) =47a(11) =52a(12) =23a(13) =6a(14) =2a(15) =123a(16) =194a(17) =110a(18) =34a(19) =7a(20) =2a(21) =322a(22) =724a(23) =527a(24) =198a(25) =47a(26) =8a(27) =2a(28) =843a(29) =2702