A372868 - cp's OEIS frontend

A372868 Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k runs of weak ascents, with 1 <= k <= ceiling(n/2).

n	a(n)
1	1
2	2
3	4
4	1
5	8
6	6
7	16
8	24
9	1
10	32
11	80
12	10
13	64
14	240
15	60
16	1
17	128
18	672
19	280
20	14
21	256
22	1792
23	1120
24	112
25	1
26	512
27	4608
28	4032
29	672
30	18
31	1024
32	11520
33	13440
34	3360
35	180
36	1
37	2048
38	28160
39	42240
40	14784
41	1320
42	22
43	4096
44	67584
45	126720
46	59136
47	7920
48	264
49	1
50	8192
51	159744
52	366080
53	219648
54	41184
55	2288
56	26

[1, 2, 4, 1, 8, 6, 16, 24, 1, 32, 80, 10, 64, 240, 60, 1, 128, 672, 280, 14, 256, 1792, 1120, 112, 1, 512, 4608, 4032, 672, 18, 1024, 11520, 13440, 3360, 180, 1, 2048, 28160, 42240, 14784, 1320, 22, 4096, 67584, 126720, 59136, 7920, 264, 1, 8192, 159744, 366080, 219648, 41184, 2288, 26]

cp's OEIS Frontend

A372868 Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k runs of weak ascents, with 1 <= k <= ceiling(n/2).

Table of values

List of values