Fibonacci sequence beginning 4, 19.

Terms

a(0) =4a(1) =19a(2) =23a(3) =42a(4) =65a(5) =107a(6) =172a(7) =279a(8) =451a(9) =730a(10) =1181a(11) =1911a(12) =3092a(13) =5003a(14) =8095a(15) =13098a(16) =21193a(17) =34291a(18) =55484a(19) =89775a(20) =145259a(21) =235034a(22) =380293a(23) =615327a(24) =995620a(25) =1610947a(26) =2606567a(27) =4217514a(28) =6824081a(29) =11041595