A181510 - cp's OEIS frontend

A181510 Number of permutations of the multiset {1,1,2,2,3,3,...,n+1,n+1} avoiding the permutation patterns {132, 231, 2134}.

n	a(n)
1	6
2	18
3	34
4	54
5	78
6	106
7	138
8	174
9	214
10	258
11	306
12	358
13	414
14	474
15	538
16	606
17	678
18	754
19	834
20	918
21	1006
22	1098
23	1194
24	1294
25	1398
26	1506
27	1618
28	1734
29	1854
30	1978
31	2106
32	2238
33	2374
34	2514
35	2658
36	2806
37	2958
38	3114
39	3274
40	3438
41	3606
42	3778
43	3954
44	4134
45	4318
46	4506
47	4698
48	4894

[6, 18, 34, 54, 78, 106, 138, 174, 214, 258, 306, 358, 414, 474, 538, 606, 678, 754, 834, 918, 1006, 1098, 1194, 1294, 1398, 1506, 1618, 1734, 1854, 1978, 2106, 2238, 2374, 2514, 2658, 2806, 2958, 3114, 3274, 3438, 3606, 3778, 3954, 4134, 4318, 4506, 4698, 4894]

cp's OEIS Frontend

A181510 Number of permutations of the multiset {1,1,2,2,3,3,...,n+1,n+1} avoiding the permutation patterns {132, 231, 2134}.

Table of values

List of values