%I M5173 #20 Jun 17 2017 09:47:40
%S 24,1920,193536,66355200,13624934400,243465191424000,4944216195072000,
%T 9990141980442624000,39391717484295880704000,
%U 465236915972420822630400000
%N Coefficients for numerical integration.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H H. E. Salzer, <a href="http://dx.doi.org/10.1080/14786444508521494">Coefficients for mid-interval numerical integration with central differences</a>, Phil. Mag., 36 (1945), 216-218.
%H T. R. Van Oppolzer, <a href="http://www.archive.org/stream/lehrbuchzurbahnb02oppo#page/545/mode/1up">Lehrbuch zur Bahnbestimmung der Kometen und Planeten</a>, Vol. 2, Engelmann, Leipzig, 1880, p. 545 (see denominators of numbers named P(2,2k)).
%F a(n) = A002198(n) / (2*n+1). - _Sean A. Irvine_, Jun 17 2017
%Y Cf. A002197, A002198.
%K nonn
%O 0,1
%A _N. J. A. Sloane_