Exponential (or binomial) convolution of A000032 (Lucas) with itself, divided by 2.

A203579

Exponential (or binomial) convolution of A000032 (Lucas) with itself, divided by 2.

Terms

    a(0) =2a(1) =2a(2) =7a(3) =17a(4) =57a(5) =177a(6) =577a(7) =1857a(8) =6017a(9) =19457a(10) =62977a(11) =203777a(12) =659457a(13) =2134017a(14) =6905857a(15) =22347777a(16) =72318977a(17) =234029057a(18) =757334017a(19) =2450784257a(20) =7930904577a(21) =25664946177a(22) =83053510657a(23) =268766806017a(24) =869747654657

External references