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

A024882

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

Terms

    a(0) =0a(1) =0a(2) =4a(3) =7a(4) =11a(5) =18a(6) =29a(7) =47a(8) =94a(9) =152a(10) =246a(11) =398a(12) =644a(13) =1042a(14) =1686a(15) =2728a(16) =4537a(17) =7341a(18) =11878a(19) =19219a(20) =31097a(21) =50316a(22) =81413a(23) =131729a(24) =213142a(25) =344871a(26) =559377a(27) =905091a(28) =1464468a(29) =2369559

External references