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 A109048 #28 Sep 08 2023 07:33:17
%S A109048 0,7,14,21,28,35,42,7,56,63,70,77,84,91,14,105,112,119,126,133,140,21,
%T A109048 154,161,168,175,182,189,28,203,210,217,224,231,238,35,252,259,266,
%U A109048 273,280,287,42,301,308,315,322,329,336,49,350,357,364,371,378,385,56
%N A109048 a(n) = lcm(n, 7).
%H A109048 Amiram Eldar, <a href="/A109048/b109048.txt">Table of n, a(n) for n = 0..10000</a>
%H A109048 <a href="/index/Rec#order_14">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,2,0,0,0,0,0,0,-1).
%H A109048 <a href="/index/Lc#lcm">Index entries for sequences related to lcm's</a>.
%F A109048 a(n) = n*7/gcd(n, 7).
%F A109048 a(n) = 7*A106608(n) = 7*n/A109010(n). - _R. J. Mathar_, Apr 18 2011
%F A109048 Sum_{k=1..n} a(k) ~ (43/14) * n^2. - _Amiram Eldar_, Nov 26 2022
%F A109048 Sum_{n>=1} (-1)^(n+1)/a(n) = 13*log(2)/49. - _Amiram Eldar_, Sep 08 2023
%t A109048 LCM[Range[0, 100], 7] (* _Wesley Ivan Hurt_, Nov 17 2022 *)
%o A109048 (Sage) [lcm(n,7)for n in range(0, 57)] # _Zerinvary Lajos_, Jun 09 2009
%o A109048 (Magma) [Lcm(n,7): n in [0..100]]; // _Vincenzo Librandi_, Apr 18 2011
%Y A109048 Cf. A106608, A109010, A109042.
%K A109048 nonn,easy
%O A109048 0,2
%A A109048 _Mitch Harris_, Jun 18 2005