a(n) = L(n)^3 - L(n)^2, where L(n) is the n-th Lucas number (A000032).

A244310

a(n) = L(n)^3 - L(n)^2, where L(n) is the n-th Lucas number (A000032).

Terms

    a(0) =4a(1) =0a(2) =18a(3) =48a(4) =294a(5) =1210a(6) =5508a(7) =23548a(8) =101614a(9) =433200a(10) =1845738a(11) =7840998a(12) =33282564a(13) =141149320a(14) =598366458a(15) =2535856048a(16) =10745092894a(17) =45524786370a(18) =192866785668a(19) =817050731748

External references