A079974 - cp's OEIS frontend

A079974 Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=4, I={0,2}.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	1
6	3
7	2
8	5
9	5
10	9
11	10
12	16
13	20
14	30
15	39
16	56
17	75
18	106
19	144
20	201
21	275
22	382
23	525
24	727
25	1001
26	1384
27	1908
28	2636
29	3636
30	5021
31	6928
32	9565
33	13200
34	18222
35	25149
36	34715
37	47914
38	66137
39	91285
40	126001
41	173914
42	240052
43	331336
44	457338
45	631251
46	871304
47	1202639

[1, 0, 1, 0, 2, 1, 3, 2, 5, 5, 9, 10, 16, 20, 30, 39, 56, 75, 106, 144, 201, 275, 382, 525, 727, 1001, 1384, 1908, 2636, 3636, 5021, 6928, 9565, 13200, 18222, 25149, 34715, 47914, 66137, 91285, 126001, 173914, 240052, 331336, 457338, 631251, 871304, 1202639]

cp's OEIS Frontend

A079974 Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=4, I={0,2}.

Table of values

List of values