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 A324204 #13 Aug 27 2019 17:53:31 %S A324204 1,1,3,1,5,23,35,97,203,409,205,1297,933,311,10819,18239,37611,118535, %T A324204 135251,394609,217989,72663,24221,2788129,4663029,32000089,11702925, %U A324204 3900975,1300325,358347383,596378755,1232862847,3274265813,6818044999,3453941395 %N A324204 a(n) is the smallest denominator D of the fraction N/D with 1 <= D < 2^n which is closest to (3/2)^n. %C A324204 First 10000 terms are odd. Is that the general case? %t A324204 a[n_] := Denominator[FromContinuedFraction[ContinuedFraction[(3/2)^n][[1 ;; -2]]]]; Array[a, 35] (* _Amiram Eldar_, Jul 10 2019 *) %Y A324204 Cf. A215199. %K A324204 nonn,frac %O A324204 1,3 %A A324204 _David A. Corneth_, Mar 14 2019