a(n)*a(n+3) - a(n+1)*a(n+2) = 5, given a(0)=a(1)=1, a(2)=2.

Terms

a(0) =1a(1) =1a(2) =2a(3) =7a(4) =19a(5) =69a(6) =188a(7) =683a(8) =1861a(9) =6761a(10) =18422a(11) =66927a(12) =182359a(13) =662509a(14) =1805168a(15) =6558163a(16) =17869321a(17) =64919121a(18) =176888042a(19) =642633047a(20) =1751011099a(21) =6361411349a(22) =17333222948a(23) =62971480443a(24) =171581218381a(25) =623353393081