cp's OEIS Frontend

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.

A075119 Denominator of n/floor(sqrt(n)); numerator is A073890(n).

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%I A075119 #10 Jul 08 2014 11:16:47
%S A075119 1,1,1,1,2,1,2,1,1,3,3,1,3,3,1,1,4,2,4,1,4,2,4,1,1,5,5,5,5,1,5,5,5,5,
%T A075119 1,1,6,3,2,3,6,1,6,3,2,3,6,1,1,7,7,7,7,7,7,1,7,7,7,7,7,7,1,1,8,4,8,2,
%U A075119 8,4,8,1,8,4,8,2,8,4,8,1,1,9,9,3,9,9,3,9,9,1,9,9,3,9,9,3,9,9,1,1,10,5,10,5
%N A075119 Denominator of n/floor(sqrt(n)); numerator is A073890(n).
%H A075119 Reinhard Zumkeller, <a href="/A075119/b075119.txt">Table of n, a(n) for n = 1..10000</a>
%F A075119 a(n) = A000196(n)/A067815(n).
%p A075119 A075119:=n->denom(n/floor(sqrt(n))): seq(A075119(n), n=1..100); # _Wesley Ivan Hurt_, Jul 07 2014
%t A075119 Table[Denominator[n/Floor[Sqrt[n]]], {n, 100}] (* _Wesley Ivan Hurt_, Jul 07 2014 *)
%o A075119 (Haskell)
%o A075119 import Data.Ratio ((%), denominator)
%o A075119 a075119 n = denominator $ n % a000196 n
%o A075119 -- _Reinhard Zumkeller_, Jul 08 2014
%Y A075119 Cf. A000196, A067815.
%K A075119 nonn,frac
%O A075119 1,5
%A A075119 _Reinhard Zumkeller_, Sep 03 2002
%E A075119 Numerator reference corrected by _Reinhard Zumkeller_, Jul 08 2014