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%I #14 Mar 15 2020 02:45:18
%S 1,1,2,1,1,2,4,4,4,2,1,1,2,4,8,11,14,16,14,11,8,4,2,1
%N Irregular triangle read by rows: coefficients of the s-inflated Eulerian polynomial Q^(s)_n(x) where s is the sequence (1,2,3,...n).
%D Pensyl, Thomas W., and Carla D. Savage. "Rational lecture hall polytopes and inflated Eulerian polynomials." The Ramanujan Journal 31.1-2 (2013): 97-114.
%H Thomas W. Pensyl and Carla D. Savage, <a href="https://people.engr.ncsu.edu/savage/PAPERS/rational.pdf">Rational lecture hall polytopes and inflated Eulerian polynomials</a>, preprint 2011.
%e Triangle begins:
%e 1;
%e 1, 2, 1;
%e 1, 2, 4, 4, 4, 2, 1;
%e 1, 2, 4, 8, 11, 14, 16, 14, 11, 8, 4, 2, 1;
%e ...
%Y Cf. A333271, A333272.
%K nonn,tabf,more
%O 1,3
%A _N. J. A. Sloane_, Mar 14 2020