Graham-Pollak sequence with initial term 8.

Terms

a(0) =8a(1) =12a(2) =17a(3) =24a(4) =34a(5) =48a(6) =68a(7) =96a(8) =136a(9) =193a(10) =273a(11) =386a(12) =546a(13) =772a(14) =1092a(15) =1545a(16) =2185a(17) =3090a(18) =4370a(19) =6180a(20) =8740a(21) =12360a(22) =17480a(23) =24721a(24) =34961a(25) =49443a(26) =69923a(27) =98886a(28) =139846a(29) =197772