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%I #8 Aug 22 2018 15:52:52
%S 1,7,58,545,5570
%N F_n.
%C Needs a better definition, but the source is readily available on the arXiv. - _N. J. A. Sloane_, Aug 22 2018
%H Shishuo Fu, Dazhao Tang, Bin Han, Jiang Zeng, <a href="https://arxiv.org/abs/1805.08945">Gamma expansions of q-Narayana polynomials, pattern avoidance and the (-1)-phenomenon</a>, arXiv:1805.08945 [math.CO], 2018. See p. 27.
%Y Cf. A318232.
%K nonn,more
%O 1,2
%A _Michael De Vlieger_, Aug 21 2018