A079990 - cp's OEIS frontend

A079990 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	2
4	6
5	16
6	36
7	73
8	157
9	353
10	797
11	1776
12	3916
13	8636
14	19145
15	42504
16	94286
17	208948
18	462907
19	1025863
20	2274069
21	5040891
22	11173063
23	24763854
24	54886846
25	121655063
26	269646786
27	597664017
28	1324697483
29	2936135519
30	6507831521
31	14424377636

[1, 1, 1, 2, 6, 16, 36, 73, 157, 353, 797, 1776, 3916, 8636, 19145, 42504, 94286, 208948, 462907, 1025863, 2274069, 5040891, 11173063, 24763854, 54886846, 121655063, 269646786, 597664017, 1324697483, 2936135519, 6507831521, 14424377636]

cp's OEIS Frontend

A079990 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