A373431 - cp's OEIS frontend

A373431 Triangle read by rows: Coefficients of the polynomials N(n, x) * EZ(n, x), where N denote the Narayana polynomials A131198 and EZ the Eulerian zig-zag polynomials A205497.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	4
6	4
7	1
8	1
9	9
10	25
11	25
12	9
13	1
14	1
15	17
16	97
17	221
18	221
19	97
20	17
21	1
22	1
23	29
24	291
25	1229
26	2476
27	2476
28	1229
29	291
30	29
31	1
32	1
33	47
34	760
35	5303
36	18415
37	33818
38	33818
39	18415
40	5303
41	760
42	47
43	1
44	1
45	74
46	1818
47	19481
48	106272
49	317902
50	544727
51	544727
52	317902
53	106272
54	19481
55	1818
56	74
57	1

[1, 1, 1, 1, 1, 4, 4, 1, 1, 9, 25, 25, 9, 1, 1, 17, 97, 221, 221, 97, 17, 1, 1, 29, 291, 1229, 2476, 2476, 1229, 291, 29, 1, 1, 47, 760, 5303, 18415, 33818, 33818, 18415, 5303, 760, 47, 1, 1, 74, 1818, 19481, 106272, 317902, 544727, 544727, 317902, 106272, 19481, 1818, 74, 1]

cp's OEIS Frontend

A373431 Triangle read by rows: Coefficients of the polynomials N(n, x) * EZ(n, x), where N denote the Narayana polynomials A131198 and EZ the Eulerian zig-zag polynomials A205497.

Table of values

List of values