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 A083554 #16 Apr 09 2021 03:50:37
%S A083554 2,4,12,30,60,48,144,198,308,420,180,360,840,966,1196,1508,1740,660,
%T A083554 2310,2520,936,3198,3608,1056,2400,5100,5406,5724,3024,1008,8190,8840,
%U A083554 9384,10212,11100,3900,4212,13446,14276,15308,16020,3420,18240,9408
%N A083554 Least common multiple of prime(n+1)-1 and prime(n)-1.
%H A083554 Amiram Eldar, <a href="/A083554/b083554.txt">Table of n, a(n) for n = 1..10000</a>
%F A083554 a(n) = lcm(A006093(n+1), A006093(n)) = lcm(prime(n+1)-1, prime(n)-1).
%e A083554 n=25: a(25) = lcm(97-1, 101-1) = lcm(96,100) = 2400.
%t A083554 f[x_] := Prime[x]-1; Table[LCM[f[w+1], f[w]], {w, 1, 128}]
%o A083554 (PARI) a(n) = lcm(prime(n+1)-1, prime(n)-1); \\ _Michel Marcus_, Mar 15 2018
%Y A083554 Cf. A006093, A083538-A083555, A058263.
%K A083554 nonn
%O A083554 1,1
%A A083554 _Labos Elemer_, May 22 2003