a(n) = ((5 + sqrt(3))^n - (5 - sqrt(3))^n)/(2*sqrt(3)).
A153596
a(n) = ((5 + sqrt(3))^n - (5 - sqrt(3))^n)/(2*sqrt(3)).
Terms
- a(0) =1a(1) =10a(2) =78a(3) =560a(4) =3884a(5) =26520a(6) =179752a(7) =1214080a(8) =8186256a(9) =55152800a(10) =371430368a(11) =2500942080a(12) =16837952704a(13) =113358801280a(14) =763153053312
External references
- oeis: A153596