This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A018159 #19 Jun 11 2025 01:09:51 %S A018159 1,1,3,5,9,16,27,48,84,147,256,445,776,1351,2352,4096,7131,12416, %T A018159 21618,37640,65536,114104,198668,345901,602248,1048576,1825676, %U A018159 3178688,5534417,9635980,16777216,29210829,50859008,88550676,154175683 %N A018159 Powers of fifth root of 16 rounded down. %H A018159 Vincenzo Librandi, <a href="/A018159/b018159.txt">Table of n, a(n) for n = 0..2000</a> %t A018159 Floor[(Power[16, (5)^-1])^Range[0,40]] (* _Harvey P. Dale_, Jan 22 2011 *) %o A018159 (Magma) seq := [Floor(16^(n/5)) : n in [0..40]]; seq; // _Vincenzo Librandi_, Jun 06 2025 %Y A018159 Cf. A011101. %K A018159 nonn %O A018159 0,3 %A A018159 _N. J. A. Sloane_