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 A077638 #26 Sep 27 2021 13:03:48
%S A077638 0,2,6,8,18,42,57,105,372,1344,1800,7291,32524,150567,342906,738854,
%T A077638 3298239,20772345,36965663,184510241,1433356755,7840220998,
%U A077638 56906577387,113611483212,843530932394,6257315565011,60692272232438,70311381976766,692150332693349,4888462119949170
%N A077638 Sum of terms in periodic part of continued fraction expansion of square root of A051451(n), i.e., sqrt(lcm(1..x)) where x is a prime power from A000961.
%H A077638 Chai Wah Wu, <a href="/A077638/b077638.txt">Table of n, a(n) for n = 1..37</a>
%e A077638 For A051451(10) = 360360, the periodic part is {3,2,1,132,1,2,3,1200} with 1344 as sum of entries, so a(10) = 1344.
%t A077638 t={A051451(n)} Table[Max[Last[ContinuedFraction[Sqrt[Part[t, u]]]]], {u, 1, 24}]
%Y A077638 Cf. A000961, A051451, A077636-A077637.
%K A077638 nonn
%O A077638 1,2
%A A077638 _Labos Elemer_, Nov 13 2002
%E A077638 a(25)-a(28) from _Ray Chandler_, Jan 16 2009
%E A077638 a(1) corrected and a(29)-a(30) added by _Chai Wah Wu_, Sep 19 2021