a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (Lucas numbers).

A024319

a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (Lucas numbers).

Terms

    a(0) =0a(1) =0a(2) =3a(3) =4a(4) =7a(5) =11a(6) =18a(7) =29a(8) =58a(9) =94a(10) =152a(11) =246a(12) =398a(13) =644a(14) =1042a(15) =1686a(16) =2804a(17) =4537a(18) =7341a(19) =11878a(20) =19219a(21) =31097a(22) =50316a(23) =81413a(24) =131729a(25) =213142a(26) =345714a(27) =559377a(28) =905091a(29) =1464468

External references