A018078 - OEIS

%I #12 Jul 04 2018 17:09:25

%S 1,1,3,6,12,22,41,77,144,268,498,928,1728,3216,5985,11141,20736,38594,

%T 71831,133693,248832,463128,861979,1604324,2985984,5557542,10343751,

%U 19251891,35831808,66690509,124125023

%N Powers of fourth root of 12 rounded down.

%t Floor[(Power[12, (4)^-1])^Range[0,30]] (* _Harvey P. Dale_, Dec 08 2011 *)

%o (PARI) A018078(n) = floor(12^(n/4)) \\ _Michael B. Porter_, Oct 25 2009

%K nonn

%O 0,3

%A _N. J. A. Sloane_