3,2
It is conjectured that this is (apart from offset) the same as A216714.
M. Waldschmidt, Lectures on Multiple Zeta Values (IMSC 2011), http://www.math.jussieu.fr/~miw/articles/pdf/MZV2011IMSc.pdf
Table of n, a(n) for n=3..10.
P. Flajolet and B. Salvy, Euler sums and contour integral representations, Experimental Mathematics, Vol. 7 Issue 1 (1998)
Cf. A038360.
Sequence in context: A055890 A219768 A038359 * A216714 A084174 A036658
Adjacent sequences: A038357 A038358 A038359 * A038361 A038362 A038363
nonn
N. J. A. Sloane.
approved