Convolution of natural numbers n >= 1 with Lucas numbers L(k) (A000032) for k >= 3.

Terms

a(0) =4a(1) =15a(2) =37a(3) =77a(4) =146a(5) =262a(6) =454a(7) =769a(8) =1283a(9) =2119a(10) =3476a(11) =5676a(12) =9240a(13) =15011a(14) =24353a(15) =39473a(16) =63942a(17) =103538a(18) =167610a(19) =271285a(20) =439039a(21) =710475a(22) =1149672a(23) =1860312a(24) =3010156a(25) =4870647a(26) =7880989a(27) =12751829a(28) =20633018a(29) =33385054