a(n) = L(n)*C(n), L(n)=Lucas numbers (A000032), C(n)=reflected Lucas numbers (see comment to A061084).

A075150

a(n) = L(n)*C(n), L(n)=Lucas numbers (A000032), C(n)=reflected Lucas numbers (see comment to A061084).

Terms

    a(0) =4a(1) =-1a(2) =9a(3) =-16a(4) =49a(5) =-121a(6) =324a(7) =-841a(8) =2209a(9) =-5776a(10) =15129a(11) =-39601a(12) =103684a(13) =-271441a(14) =710649a(15) =-1860496a(16) =4870849a(17) =-12752041a(18) =33385284a(19) =-87403801a(20) =228826129a(21) =-599074576a(22) =1568397609a(23) =-4106118241a(24) =10749957124a(25) =-28143753121a(26) =73681302249a(27) =-192900153616a(28) =505019158609

External references