A372883 - cp's OEIS frontend

A372883 Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k symmetric peaks, with k >= 0.

n	a(n)
1	1
2	2
3	4
4	1
5	9
6	5
7	23
8	17
9	1
10	63
11	51
12	8
13	176
14	149
15	39
16	1
17	491
18	439
19	153
20	11
21	1362
22	1308
23	540
24	70
25	1
26	3762
27	3912
28	1812
29	342
30	14
31	10369
32	11671
33	5935
34	1439
35	110
36	1
37	28559
38	34637
39	19175
40	5541
41	645
42	17
43	78653
44	102222
45	61302
46	20214
47	3170
48	159
49	1
50	216638
51	300190
52	194080
53	71242
54	13903
55	1089
56	20

[1, 2, 4, 1, 9, 5, 23, 17, 1, 63, 51, 8, 176, 149, 39, 1, 491, 439, 153, 11, 1362, 1308, 540, 70, 1, 3762, 3912, 1812, 342, 14, 10369, 11671, 5935, 1439, 110, 1, 28559, 34637, 19175, 5541, 645, 17, 78653, 102222, 61302, 20214, 3170, 159, 1, 216638, 300190, 194080, 71242, 13903, 1089, 20]

cp's OEIS Frontend

A372883 Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k symmetric peaks, with k >= 0.

Table of values

List of values