A342840 - cp's OEIS frontend

A342840 Irregular triangle: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 4213. 0 <= k <= A342646(n).

n	a(n)
0	1
1	1
2	2
3	6
4	23
5	1
6	103
7	10
8	6
9	1
10	512
11	77
12	69
13	30
14	21
15	5
16	6
17	2740
18	548
19	598
20	330
21	335
22	123
23	174
24	58
25	58
26	37
27	26
28	3
29	9
30	1
31	15485
32	3799
33	4686
34	2970
35	3411
36	1676
37	2338
38	1040
39	1317
40	878
41	777
42	363
43	608
44	230
45	252
46	165
47	133
48	30
49	93
50	26
51	31
52	4
53	1
54	3
55	4
56	91245
57	26165
58	35148
59	24550
60	30182
61	17185
62	24685
63	12976
64	16867
65	12248
66	12360
67	7203
68	11086
69	5692
70	6391
71	5194
72	5006
73	2751
74	3917
75	2019
76	2482
77	1622
78	1371
79	812
80	1233
81	490
82	495
83	416
84	360
85	157
86	282
87	54
88	78
89	41
90	29
91	22
92	49
93	7
94	4
95	0
96	6

[1, 1, 2, 6, 23, 1, 103, 10, 6, 1, 512, 77, 69, 30, 21, 5, 6, 2740, 548, 598, 330, 335, 123, 174, 58, 58, 37, 26, 3, 9, 1, 15485, 3799, 4686, 2970, 3411, 1676, 2338, 1040, 1317, 878, 777, 363, 608, 230, 252, 165, 133, 30, 93, 26, 31, 4, 1, 3, 4, 91245, 26165, 35148, 24550, 30182, 17185, 24685, 12976, 16867, 12248, 12360, 7203, 11086, 5692, 6391, 5194, 5006, 2751, 3917, 2019, 2482, 1622, 1371, 812, 1233, 490, 495, 416, 360, 157, 282, 54, 78, 41, 29, 22, 49, 7, 4, 0, 6]

cp's OEIS Frontend

A342840 Irregular triangle: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 4213. 0 <= k <= A342646(n).

Table of values

List of values