A263771 - cp's OEIS frontend

A263771 Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n and k occurrences of the pattern 312.

n	a(n)
0	1
1	1
2	2
3	5
4	1
5	14
6	5
7	4
8	1
9	42
10	21
11	23
12	14
13	12
14	5
15	3
16	132
17	84
18	107
19	82
20	96
21	55
22	64
23	37
24	29
25	22
26	10
27	0
28	2
29	429
30	330
31	464
32	410
33	526
34	394
35	475
36	365
37	360
38	298
39	281
40	175
41	206
42	126
43	93
44	55
45	23
46	14
47	13
48	1
49	2
50	1430
51	1287
52	1950
53	1918
54	2593
55	2225
56	2858
57	2489
58	2682
59	2401

[1, 1, 2, 5, 1, 14, 5, 4, 1, 42, 21, 23, 14, 12, 5, 3, 132, 84, 107, 82, 96, 55, 64, 37, 29, 22, 10, 0, 2, 429, 330, 464, 410, 526, 394, 475, 365, 360, 298, 281, 175, 206, 126, 93, 55, 23, 14, 13, 1, 2, 1430, 1287, 1950, 1918, 2593, 2225, 2858, 2489, 2682, 2401]

cp's OEIS Frontend

A263771 Triangle read by rows: T(n,k) (n>=0, k>=0) is the number of permutations of n and k occurrences of the pattern 312.

Table of values

List of values