A018156 - OEIS

%I #9 Jul 31 2022 18:07:10

%S 1,1,2,5,8,15,25,44,76,130,225,386,664,1142,1963,3375,5800,9970,17136,

%T 29454,50625,87012,149555,257051,441812,759375,1305192,2243328,

%U 3855769,6627188,11390625,19577886,33649921

%N Powers of fifth root of 15 rounded down.

%t Floor[Surd[15,5]^Range[0,40]] (* _Harvey P. Dale_, Jul 31 2022 *)

%K nonn

%O 0,3

%A _N. J. A. Sloane_.