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 A087334 #12 Aug 29 2018 06:07:08
%S A087334 3,5,8,3,14,40,1270,15874,251984126,28673777890680889,
%T A087334 2806729404119595479093401735,
%U A087334 15973219322678152520589944038429546981629762353084607
%N A087334 a(1) = 3, then smallest number such that every partial product + 1 is a distinct square.
%e A087334 3 + 1 = 4, 3*5 + 1 = 16, 3*5*8 + 1 = 121 etc. are squares.
%t A087334 p = 1; Do[k = 2; While[ !IntegerQ[Sqrt[p*k + 1]], k++ ]; Print[k]; p *= k, {n, 1, 9}] (* _Ryan Propper_ *)
%Y A087334 Cf. A068559, A087335.
%K A087334 nonn
%O A087334 1,1
%A A087334 _Amarnath Murthy_, Sep 06 2003, May 22 2004
%E A087334 Edited by _Don Reble_, Sep 12 2003
%E A087334 Entry revised by _N. J. A. Sloane_, Aug 29 2006