A338526 - cp's OEIS frontend

A338526 Triangle read by rows: T(n,k) is the number of permutations of k elements from [1..n] without consecutive adjacent values.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	0
6	1
7	3
8	2
9	0
10	1
11	4
12	6
13	4
14	2
15	1
16	5
17	12
18	18
19	20
20	14
21	1
22	6
23	20
24	48
25	90
26	124
27	90
28	1
29	7
30	30
31	100
32	272
33	582
34	860
35	646
36	1
37	8
38	42
39	180
40	650
41	1928
42	4386
43	6748
44	5242
45	1
46	9
47	56
48	294
49	1332
50	5110
51	15912
52	37566
53	59612
54	47622
55	1
56	10
57	72
58	448
59	2450
60	11604
61	46250
62	148648
63	360642
64	586540
65	479306

[1, 1, 1, 1, 2, 0, 1, 3, 2, 0, 1, 4, 6, 4, 2, 1, 5, 12, 18, 20, 14, 1, 6, 20, 48, 90, 124, 90, 1, 7, 30, 100, 272, 582, 860, 646, 1, 8, 42, 180, 650, 1928, 4386, 6748, 5242, 1, 9, 56, 294, 1332, 5110, 15912, 37566, 59612, 47622, 1, 10, 72, 448, 2450, 11604, 46250, 148648, 360642, 586540, 479306]

cp's OEIS Frontend

A338526 Triangle read by rows: T(n,k) is the number of permutations of k elements from [1..n] without consecutive adjacent values.

Table of values

List of values