A354622 - cp's OEIS frontend

A354622 Irregular triangle read by rows: Refined 3-Narayana triangle. Coefficients of partition polynomials of A134264, a refined Narayana triangle enumerating noncrossing partitions, with all h_k other than h_0, h_3, h_6, ..., h_(3n), ... replaced by zero.

n	a(n)
1	1
2	1
3	3
4	1
5	9
6	12
7	1
8	12
9	6
10	66
11	55
12	1
13	15
14	15
15	105
16	105
17	455
18	273
19	1
20	18
21	18
22	9
23	153
24	306
25	51
26	816
27	1224
28	3060
29	1428
30	1
31	21
32	21
33	21
34	210
35	420
36	210
37	210
38	1330
39	3990
40	1330
41	5985
42	11970
43	20349
44	7752
45	1
46	24
47	24
48	24
49	12
50	276
51	552
52	552
53	276
54	276
55	2024
56	6072
57	3036
58	6072
59	506
60	10626
61	42504
62	21252
63	42504
64	106260
65	134596
66	43263

[1, 1, 3, 1, 9, 12, 1, 12, 6, 66, 55, 1, 15, 15, 105, 105, 455, 273, 1, 18, 18, 9, 153, 306, 51, 816, 1224, 3060, 1428, 1, 21, 21, 21, 210, 420, 210, 210, 1330, 3990, 1330, 5985, 11970, 20349, 7752, 1, 24, 24, 24, 12, 276, 552, 552, 276, 276, 2024, 6072, 3036, 6072, 506, 10626, 42504, 21252, 42504, 106260, 134596, 43263]

cp's OEIS Frontend

A354622 Irregular triangle read by rows: Refined 3-Narayana triangle. Coefficients of partition polynomials of A134264, a refined Narayana triangle enumerating noncrossing partitions, with all h_k other than h_0, h_3, h_6, ..., h_(3n), ... replaced by zero.

Table of values

List of values