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 A072042 #25 Jan 15 2024 11:02:20
%S A072042 1,1,2,3,8,30,288,10080,3317760,37623398400,138694895861760000,
%T A072042 5739990655358858585702400000,
%U A072042 868480806755424464755519466250436608000000000
%N A072042 a(n+2) = a(n+1)*a(n)*(1+1/n), a(1)=a(2)=1.
%H A072042 Steven R. Finch, <a href="/A072042/a072042.pdf">Substitution dynamics</a>, January 23, 2014. [Cached copy, with permission of the author]
%H A072042 C. Godrèche and J. M. Luck, <a href="http://dx.doi.org/10.1007/BF01042590">Quasiperiodicity and randomness in tilings of the plane</a>, J. Statist. Phys. 55 (1989) 1-28.
%H A072042 J. Nilsson, <a href="http://arxiv.org/abs/1001.3513">On the entropy of random Fibonacci words</a>, arXiv:1001.3513 [math.CO], 2010.
%t A072042 a[1] = a[2] = 1; a[n_] := a[n - 1]*a[n - 2]*(1 + 1/(n - 2)); Table[ a[n], {n, 1, 13}]
%t A072042 RecurrenceTable[{a[1]==a[2]==1,a[n+2]==a[n+1]*a[n]*(1+1/n)},a,{n,13}] (* _Harvey P. Dale_, Sep 18 2018 *)
%Y A072042 Cf. A235857, A235858.
%K A072042 easy,nonn
%O A072042 1,3
%A A072042 _Benoit Cloitre_, Jul 29 2002
%E A072042 Edited by _Robert G. Wilson v_, Jul 31 2002