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 A071290 #11 Feb 20 2015 01:09:07
%S A071290 1,2,6,30,210,2730,30030,510510,9699690,223092870,8254436190,
%T A071290 602573841870,17474641414230,541713883841130,23293697005168590,
%U A071290 1840202063408318610,97530709360640886330,8095048876933193565390,542368274754523968881130,22237099264935482724126330
%N A071290 The sequence f(1), f(2), ... as defined in A067836.
%t A071290 Join[{f = 1}, a = 2; Table[f = f*a; a = NextPrime[f + 1] - f; f, {n, 2, 20}]] (* _Jayanta Basu_, Aug 10 2013 *)
%o A071290 (Perl) # Generate f(n) from B(n) sequence using the b067836.txt file:
%o A071290 perl -nE '/(\d+)\s+(\d+)/; $f[$n] = $f[$n-1]*$2; say "$n $f[$n]"; $n++; BEGIN { use Math::GMP qw/:constant/; $f[1]=1; $n=2; say "1 1"; }' b067836.txt
%o A071290 # _Dana Jacobsen_, Feb 15 2015
%Y A071290 Cf. A067836.
%K A071290 nonn
%O A071290 1,2
%A A071290 _Dean Hickerson_, Jun 10 2002
%E A071290 Two more terms from _Jayanta Basu_, Aug 10 2013