A136126 - cp's OEIS frontend

A136126 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,k+n} having excedance set {1,2,...,k} (the empty set for k=0), 0 <= k <= n-1.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	7
9	7
10	1
11	1
12	15
13	31
14	15
15	1
16	1
17	31
18	115
19	115
20	31
21	1
22	1
23	63
24	391
25	675
26	391
27	63
28	1
29	1
30	127
31	1267
32	3451
33	3451
34	1267
35	127
36	1
37	1
38	255
39	3991
40	16275
41	25231
42	16275
43	3991
44	255
45	1
46	1
47	511
48	12355
49	72955
50	164731
51	164731
52	72955
53	12355
54	511
55	1

[1, 1, 1, 1, 3, 1, 1, 7, 7, 1, 1, 15, 31, 15, 1, 1, 31, 115, 115, 31, 1, 1, 63, 391, 675, 391, 63, 1, 1, 127, 1267, 3451, 3451, 1267, 127, 1, 1, 255, 3991, 16275, 25231, 16275, 3991, 255, 1, 1, 511, 12355, 72955, 164731, 164731, 72955, 12355, 511, 1]

cp's OEIS Frontend

A136126 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,k+n} having excedance set {1,2,...,k} (the empty set for k=0), 0 <= k <= n-1.

Table of values

List of values