Power ceiling sequence of sqrt(5).

Terms

a(0) =3a(1) =7a(2) =16a(3) =36a(4) =81a(5) =182a(6) =407a(7) =911a(8) =2038a(9) =4558a(10) =10192a(11) =22791a(12) =50963a(13) =113957a(14) =254816a(15) =569786a(16) =1274081a(17) =2848932a(18) =6370406a(19) =14244661a(20) =31852031a(21) =71223307a(22) =159260157a(23) =356116538a(24) =796300787a(25) =1780582691a(26) =3981503937a(27) =8902913456