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 A096101 #12 Jan 13 2020 14:57:33 %S A096101 1,3,2,2,2,3,170,46600,1901907,65157236,42083217792,2819475721641 %N A096101 a(1) = 1; for n > 1: a(n) = smallest number >1 such that product of any two or more successive terms - 1 is prime. %e A096101 a(2) is not 2 since 1*2-1 = 1 is not prime, but 1*3-1 = 2 is prime, hence a(2) = 3. %e A096101 a(6) is not 2 since 2*2*2*2-1 = 15 is not prime, but 2*3-1 = 5, 2*2*3-1 = 11, 2*2*2*3-1 = 23, 3*2*2*2*3-1 = 71 are all prime, hence a(6) = 3. %Y A096101 Cf. A096100. %K A096101 nonn,more %O A096101 1,2 %A A096101 _Amarnath Murthy_, Jun 24 2004 %E A096101 Edited and extended by _Klaus Brockhaus_, Jul 05 2004 %E A096101 a(10) from _Donovan Johnson_, Apr 22 2008 %E A096101 a(11)-a(12) from _Bert Dobbelaere_, Jan 13 2020