Fibonacci sequence beginning 12, 67.

Terms

a(0) =12a(1) =67a(2) =79a(3) =146a(4) =225a(5) =371a(6) =596a(7) =967a(8) =1563a(9) =2530a(10) =4093a(11) =6623a(12) =10716a(13) =17339a(14) =28055a(15) =45394a(16) =73449a(17) =118843a(18) =192292a(19) =311135a(20) =503427a(21) =814562a(22) =1317989a(23) =2132551a(24) =3450540a(25) =5583091a(26) =9033631a(27) =14616722a(28) =23650353a(29) =38267075