A080007 - cp's OEIS frontend

A080007 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={0,1}.

n	a(n)
0	1
1	0
2	0
3	1
4	2
5	4
6	4
7	8
8	19
9	32
10	56
11	97
12	180
13	336
14	592
15	1064
16	1925
17	3488
18	6312
19	11345
20	20486
21	37028
22	66852
23	120688
24	217767
25	393216
26	710032
27	1281729
28	2313896
29	4177216
30	7541568
31	13615344
32	24579657
33	44374528
34	80111088
35	144628065
36	261102474

[1, 0, 0, 1, 2, 4, 4, 8, 19, 32, 56, 97, 180, 336, 592, 1064, 1925, 3488, 6312, 11345, 20486, 37028, 66852, 120688, 217767, 393216, 710032, 1281729, 2313896, 4177216, 7541568, 13615344, 24579657, 44374528, 80111088, 144628065, 261102474]

cp's OEIS Frontend

A080007 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={0,1}.

Table of values

List of values