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

A025093

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

Terms

    a(0) =3a(1) =5a(2) =22a(3) =30a(4) =66a(5) =82a(6) =161a(7) =191a(8) =342a(9) =394a(10) =680a(11) =768a(12) =1291a(13) =1437a(14) =2382a(15) =2622a(16) =4306a(17) =4698a(18) =7673a(19) =8311a(20) =13526a(21) =14562a(22) =23648a(23) =25328a(24) =41075a(25) =43797a(26) =70966a(27) =75374a(28) =122066a(29) =129202

External references