A197365 - cp's OEIS frontend

A197365 T(n,k) gives the number of permutations of the set [n] that contain k occurrences of the subword (132); irregular array read by rows (n >= 0 and 0 <= k <= max(0, floor((n-1)/2))).

n	a(n)
0	1
1	1
2	2
3	5
4	1
5	16
6	8
7	63
8	54
9	3
10	296
11	368
12	56
13	1623
14	2649
15	753
16	15
17	10176
18	20544
19	9024
20	576
21	71793
22	172596
23	104814
24	13572
25	105
26	562848
27	1569408
28	1228608
29	259968
30	7968
31	4853949
32	15398829
33	14824314
34	4532034
35	306729
36	945
37	45664896
38	162412416
39	185991936
40	75929856

[1, 1, 2, 5, 1, 16, 8, 63, 54, 3, 296, 368, 56, 1623, 2649, 753, 15, 10176, 20544, 9024, 576, 71793, 172596, 104814, 13572, 105, 562848, 1569408, 1228608, 259968, 7968, 4853949, 15398829, 14824314, 4532034, 306729, 945, 45664896, 162412416, 185991936, 75929856]

cp's OEIS Frontend

A197365 T(n,k) gives the number of permutations of the set [n] that contain k occurrences of the subword (132); irregular array read by rows (n >= 0 and 0 <= k <= max(0, floor((n-1)/2))).

Table of values

List of values