A080008 - cp's OEIS frontend

A080008 Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=2, r=3, I={-1,0}.

n	a(n)
0	1
1	0
2	0
3	1
4	2
5	2
6	3
7	5
8	11
9	15
10	24
11	40
12	68
13	110
14	177
15	290
16	480
17	783
18	1278
19	2090
20	3427
21	5609
22	9171
23	15005
24	24564
25	40200
26	65776
27	107628
28	176137
29	288244
30	471676
31	771845
32	1263074
33	2066938
34	3382367
35	5534941
36	9057495
37	14821891
38	24254820
39	39691008

[1, 0, 0, 1, 2, 2, 3, 5, 11, 15, 24, 40, 68, 110, 177, 290, 480, 783, 1278, 2090, 3427, 5609, 9171, 15005, 24564, 40200, 65776, 107628, 176137, 288244, 471676, 771845, 1263074, 2066938, 3382367, 5534941, 9057495, 14821891, 24254820, 39691008]

cp's OEIS Frontend

A080008 Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=2, r=3, I={-1,0}.

Table of values

List of values