A224809 - cp's OEIS frontend

A224809 Number of permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=4, I={-1,1,2,3}.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	4
7	6
8	9
9	12
10	16
11	24
12	36
13	54
14	81
15	117
16	169
17	247
18	361
19	532
20	784
21	1148
22	1681
23	2460
24	3600
25	5280
26	7744
27	11352
28	16641
29	24381
30	35721
31	52353
32	76729
33	112462
34	164836
35	241570
36	354025
37	518840
38	760384
39	1114416
40	1633284

[1, 1, 1, 1, 1, 2, 4, 6, 9, 12, 16, 24, 36, 54, 81, 117, 169, 247, 361, 532, 784, 1148, 1681, 2460, 3600, 5280, 7744, 11352, 16641, 24381, 35721, 52353, 76729, 112462, 164836, 241570, 354025, 518840, 760384, 1114416, 1633284]

cp's OEIS Frontend

A224809 Number of permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=4, I={-1,1,2,3}.

Table of values

List of values