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 A014397 #13 Mar 16 2020 02:53:01 %S A014397 1,1,3,8,22,60,173,471,1303,3510,9234,23574,58464,140340,326792, %T A014397 738090,1619321,3455129,7180856,14555856,28819926,55808840,105834657, %U A014397 196779279,359124362,643976482,1135731758,1971734302,3372477533 %N A014397 Number of loopless multigraphs with 7 nodes and n edges. %D A014397 CRC Handbook of Combinatorial Designs, 1996, p. 650. %D A014397 F. Harary and E. M. Palmer, Graphical Enumeration, Academic Press, NY, 1973, p. 88, (4.1.18). %H A014397 Andrew Howroyd, <a href="/A014397/b014397.txt">Table of n, a(n) for n = 0..1000</a> %o A014397 (PARI) concat([1], G(7, 30)) \\ See A191646 for G. - _Andrew Howroyd_, Mar 15 2020 %Y A014397 Row 7 of A192517. %Y A014397 Cf. A001399, A003082, A014395, A014396, A014398. %K A014397 nonn %O A014397 0,3 %A A014397 _N. J. A. Sloane_ %E A014397 More terms and better description from _Vladeta Jovovic_, Dec 29 1999