A333272 - OEIS

%I #14 Mar 15 2020 02:44:20

%S 1,1,1,2,1,1,2,4,4,4,2,1,1,2,4,8,12,15,18,20,18,16,13,10,6,4,2,1

%N Irregular triangle read by rows: coefficients of the s-inflated Eulerian polynomial Q^(s)_n(x) where s is the Fibonacci sequence (1,1,2,3,5,8,...).

%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;

%e   1, 2, 1;

%e   1, 2, 4, 4,  4,  2,  1;

%e   1, 2, 4, 8, 12, 15, 18, 20, 18, 16, 13, 10, 6, 4, 2, 1;

%e   ...

%Y Cf. A333270, A333271.

%K nonn,tabf,more

%O 1,4

%A _N. J. A. Sloane_, Mar 14 2020