%I M4424 N1870 #28 Feb 28 2019 11:45:06
%S 1,1,7,41,479,59,266681,63397,514639,178939,10410343,18500393,
%T 40799043101,1411432849,6620481151,48409924397,238357395880861,
%U 339716530787,86364397717734821,421950627598601,222226462279,15392144025383
%N Coefficients for numerical differentiation.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%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="https://doi.org/10.1002/sapm1943221115">Coefficients for numerical differentiation with central differences</a>, J. Math. Phys., 22 (1943), 115-135.
%H H. E. Salzer, <a href="/A002457/a002457_2.pdf">Coefficients for numerical differentiation with central differences</a>, J. Math. Phys., 22 (1943), 115-135. [Annotated scanned copy]
%H T. R. Van Oppolzer, <a href="http://www.archive.org/stream/lehrbuchzurbahnb02oppo#page/21/mode/1up">Lehrbuch zur Bahnbestimmung der Kometen und Planeten</a>, Vol. 2, Engelmann, Leipzig, 1880, p. 21 (see numerators of numbers named N(3,2k+1) and N(4,2k)).
%F a(n) = numer(6 * A002455(n) / 2^(2*n) * (2*n + 3)!). - _Sean A. Irvine_, Jun 10 2014
%Y Cf. A002455 (central factorial numbers), A002702 (denominators).
%K nonn,frac
%O 2,3
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Jun 10 2014