Starting from generation 8 add previous and next term yielding generation 9.

Terms

a(0) =530a(1) =994a(2) =1662a(3) =2156a(4) =2970a(5) =3598a(6) =4491a(7) =5335a(8) =6231a(9) =7278a(10) =8178a(11) =9308a(12) =10290a(13) =11382a(14) =12502a(15) =13530a(16) =14738a(17) =15768a(18) =16960a(19) =18082a(20) =19228a(21) =20462a(22) =21608a(23) =22870a(24) =24050a(25) =25238a(26) =26522a(27) =27600a(28) =29148a(29) =30120