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 A254404 #5 Jan 30 2015 06:34:54
%S A254404 4,8,22,103,1045,33781,6208815,15470810960,1924285995519778,
%T A254404 84412046357073810845036,24524866000840265443624861229739287,
%U A254404 3840696279681724751490160062668766360564070043725605,238020820035391513516910494940635409432084649486247633125762760898691133120625
%N A254404 a(n) = floor(a(n-1)^(3/2)), a(1) = 4.
%F A254404 a(n) ~ c^((3/2)^n), where c = 2.4979223179189793375148967824709800001224474904593996103376... .
%t A254404 RecurrenceTable[{a[1]==4,a[n]==Floor[a[n-1]^(3/2)]},a,{n,1,15}]
%Y A254404 Cf. A254403.
%K A254404 nonn,easy
%O A254404 1,1
%A A254404 _Vaclav Kotesovec_, Jan 30 2015