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 A254402 #5 Jan 30 2015 06:35:09
%S A254402 3,5,11,36,216,3174,178817,75615914,657536414322,533187198278014959,
%T A254402 389331524481948767367453560,7682089373864047165337173800294919710603,
%U A254402 673316152668899727226337604512171297382634328995985790889798
%N A254402 a(n) = floor(a(n-1)^(3/2)), a(1) = 3.
%F A254402 a(n) ~ c^((3/2)^n), where c = 2.02960355478331314223272956490362941573262985416270194089589212743... .
%t A254402 RecurrenceTable[{a[1]==3,a[n]==Floor[a[n-1]^(3/2)]},a,{n,1,15}]
%Y A254402 Cf. A254401.
%K A254402 nonn,easy
%O A254402 1,1
%A A254402 _Vaclav Kotesovec_, Jan 30 2015