a(n) = 2*a(n-1) - a(n-2) + a(n-4) for n>3, a(0)=2, a(1)=3, a(2)=5, a(3)=7, a sequence related to Lucas numbers.

A291660

a(n) = 2*a(n-1) - a(n-2) + a(n-4) for n>3, a(0)=2, a(1)=3, a(2)=5, a(3)=7, a sequence related to Lucas numbers.

Terms

    a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =18a(6) =30a(7) =49a(8) =79a(9) =127a(10) =205a(11) =332a(12) =538a(13) =871a(14) =1409a(15) =2279a(16) =3687a(17) =5966a(18) =9654a(19) =15621a(20) =25275a(21) =40895a(22) =66169a(23) =107064a(24) =173234a(25) =280299a(26) =453533a(27) =733831a(28) =1187363a(29) =1921194

External references