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 A056831 #26 Apr 16 2023 20:27:39 %S A056831 4,6,360,12,1680,18,4620,491400,30,1884960,29640,42,45540,12994800, %T A056831 45821160,60,89369280,164220,72,211110900,265680,195878760, %U A056831 83434347360,485100,102,578760,108,683760,97661867698205811000,1073280,1799665560 %N A056831 LCM of composite numbers falling between n-th and (n+1)-st primes. %H A056831 T. D. Noe, <a href="/A056831/b056831.txt">Table of n, a(n) for n = 2..1000</a> %F A056831 a(A029707(n)) = A014574(n). - _Michel Marcus_, Mar 22 2020 %t A056831 Table[LCM@@Range[Prime[n]+1, Prime[n+1]-1], {n,2,50}] %o A056831 (PARI) a(n) = my(x=prime(n)+1); for (i=x, prime(n+1)-1, x = lcm(i, x)); x; \\ _Michel Marcus_, Mar 22 2020 %o A056831 (Python) %o A056831 from math import lcm %o A056831 from sympy import prime %o A056831 def A056831(n): return lcm(*range(prime(n)+1,prime(n+1))) # _Chai Wah Wu_, Apr 16 2023 %Y A056831 Cf. A001359, A014574, A029707. %K A056831 nonn,easy %O A056831 2,1 %A A056831 _Labos Elemer_, Aug 30 2000 %E A056831 Edited by _Robert G. Wilson v_, Apr 12 2002