The third left hand column of triangle A167552.

Terms

a(0) =2a(1) =14a(2) =63a(3) =209a(4) =559a(5) =1281a(6) =2618a(7) =4902a(8) =8568a(9) =14168a(10) =22385a(11) =34047a(12) =50141a(13) =71827a(14) =100452a(15) =137564a(16) =184926a(17) =244530a(18) =318611a(19) =409661a(20) =520443a(21) =654005a(22) =813694a(23) =1003170a(24) =1226420a(25) =1487772a(26) =1791909a(27) =2143883a(28) =2549129a(29) =3013479