A346462 - cp's OEIS frontend

A346462 Triangle read by rows: T(n,k) gives the number of permutations of length n containing exactly k instances of the 1-box pattern; 0 <= k <= n.

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	2
6	0
7	0
8	4
9	2
10	2
11	0
12	10
13	4
14	8
15	14
16	0
17	40
18	10
19	42
20	14
21	90
22	0
23	230
24	40
25	226
26	80
27	54
28	646
29	0
30	1580
31	230
32	1480
33	442
34	534
35	128
36	5242
37	0
38	12434
39	1580
40	11496
41	2920
42	4746
43	1404
44	498
45	47622
46	0
47	110320
48	12434
49	101966
50	22762
51	45216
52	13138
53	7996
54	1426

[1, 1, 0, 0, 0, 2, 0, 0, 4, 2, 2, 0, 10, 4, 8, 14, 0, 40, 10, 42, 14, 90, 0, 230, 40, 226, 80, 54, 646, 0, 1580, 230, 1480, 442, 534, 128, 5242, 0, 12434, 1580, 11496, 2920, 4746, 1404, 498, 47622, 0, 110320, 12434, 101966, 22762, 45216, 13138, 7996, 1426]

cp's OEIS Frontend

A346462 Triangle read by rows: T(n,k) gives the number of permutations of length n containing exactly k instances of the 1-box pattern; 0 <= k <= n.

Table of values

List of values