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 A048813 #15 Dec 19 2015 13:10:54 %S A048813 1,1,2,3,6,9,17,28,49,82,143,241,417,707,1213,2065,3534,6014,10272, %T A048813 17487,29820,50758,86469,147123,250429,425932,724517,1231765,2094116, %U A048813 3558799,6047447,10273349,17450221,29633832,50317376,85420630 %N A048813 Number of rooted trees with n nodes with every leaf at height 8. %H A048813 Alois P. Heinz, <a href="/A048813/b048813.txt">Table of n, a(n) for n = 9..1000</a> %H A048813 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %H A048813 <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a> %F A048813 Euler transform of A048812 shifted right. %Y A048813 Cf. A048808-A048816. %Y A048813 Column k=8 of A244925. %K A048813 nonn %O A048813 9,3 %A A048813 _Christian G. Bower_, Apr 15 1999