a(n) is the number of vertices formed by n-secting the angles of a hexagon.

Terms

a(0) =6a(1) =7a(2) =66a(3) =19a(4) =186a(5) =145a(6) =384a(7) =199a(8) =642a(9) =547a(10) =978a(11) =631a(12) =1332a(13) =1231a(14) =1824a(15) =1351a(16) =2298a(17) =2191a(18) =2952a(19) =2281a(20) =3546a(21) =3415a(22) =4356a(23) =3583a(24) =5070a(25) =4849a(26) =6036a(27) =5101a(28) =6858a(29) =6583