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 A018135 #15 Jun 12 2025 12:56:59 %S A018135 1,1,2,3,5,8,12,18,27,42,64,97,147,222,337,512,776,1176,1782,2702, %T A018135 4096,6208,9410,14263,21618,32768,49667,75281,114104,172950,262144, %U A018135 397336,602248,912838,1383604,2097152,3178688,4817990,7302707,11068834,16777216,25429504,38543920,58421659,88550676,134217728 %N A018135 Powers of fifth root of 8 rounded down. %H A018135 Vincenzo Librandi, <a href="/A018135/b018135.txt">Table of n, a(n) for n = 0..2000</a> %t A018135 Floor[Surd[8,5]^Range[0,40]] (* _Harvey P. Dale_, Jun 16 2016 *) %t A018135 Table[Floor[(8^(1/5))^n],{n,0,50}] (* _Vincenzo Librandi_, Jun 12 2025 *) %o A018135 (Magma) seq := [Floor(8^(n/5)) : n in [0..60]]; seq; // _Vincenzo Librandi_, Jun 12 2025 %Y A018135 Cf. A011093. %K A018135 nonn %O A018135 0,3 %A A018135 _N. J. A. Sloane_