A079989 - cp's OEIS frontend

A079989 Number of permutations satisfying -k <= p(i) - i <= r and p(i) - i not in I, i=1..n, with k=3, r=3, I={1,2}.

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	13
6	27
7	51
8	103
9	221
10	498
11	1064
12	2240
13	4728
14	10076
15	21559
16	46075
17	98085
18	208759
19	444727
20	948151
21	2021335
22	4307861
23	9179111
24	19560273
25	41686260
26	88842852
27	189337896
28	403497908
29	859893060
30	1832537757
31	3905386173
32	8322891733
33	17737112293
34	37799944529

[1, 1, 1, 1, 5, 13, 27, 51, 103, 221, 498, 1064, 2240, 4728, 10076, 21559, 46075, 98085, 208759, 444727, 948151, 2021335, 4307861, 9179111, 19560273, 41686260, 88842852, 189337896, 403497908, 859893060, 1832537757, 3905386173, 8322891733, 17737112293, 37799944529]

cp's OEIS Frontend

A079989 Number of permutations satisfying -k <= p(i) - i <= r and p(i) - i not in I, i=1..n, with k=3, r=3, I={1,2}.

Table of values

List of values