A367631 - cp's OEIS frontend

A367631 Triangle read by rows: T(n,k) is the number of permutations of length n avoiding simultaneously the patterns 123 and 132 with the maximum number of non-overlapping descents equal k.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	0
7	4
8	0
9	0
10	0
11	5
12	3
13	0
14	0
15	0
16	2
17	14
18	0
19	0
20	0
21	0
22	0
23	23
24	9
25	0
26	0
27	0
28	0
29	0
30	16
31	48
32	0
33	0
34	0
35	0
36	0
37	0
38	4
39	97
40	27
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	94
49	162
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	44
59	387
60	81
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	8
70	476
71	540
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	320
83	1485
84	243
85	0
86	0
87	0
88	0
89	0
90	0

[1, 1, 0, 1, 1, 0, 0, 4, 0, 0, 0, 5, 3, 0, 0, 0, 2, 14, 0, 0, 0, 0, 0, 23, 9, 0, 0, 0, 0, 0, 16, 48, 0, 0, 0, 0, 0, 0, 4, 97, 27, 0, 0, 0, 0, 0, 0, 0, 94, 162, 0, 0, 0, 0, 0, 0, 0, 0, 44, 387, 81, 0, 0, 0, 0, 0, 0, 0, 0, 8, 476, 540, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 320, 1485, 243, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A367631 Triangle read by rows: T(n,k) is the number of permutations of length n avoiding simultaneously the patterns 123 and 132 with the maximum number of non-overlapping descents equal k.

Table of values

List of values