A361654 - cp's OEIS frontend

A361654 Triangle read by rows where T(n,k) is the number of nonempty subsets of {1,...,2n-1} with median n and minimum k.

n	a(n)
1	1
2	2
3	1
4	5
5	3
6	1
7	15
8	9
9	4
10	1
11	50
12	29
13	14
14	5
15	1
16	176
17	99
18	49
19	20
20	6
21	1
22	638
23	351
24	175
25	76
26	27
27	7
28	1
29	2354
30	1275
31	637
32	286
33	111
34	35
35	8
36	1
37	8789
38	4707
39	2353
40	1078
41	441
42	155
43	44
44	9
45	1
46	33099
47	17577
48	8788
49	4081
50	1728
51	650
52	209
53	54
54	10
55	1

[1, 2, 1, 5, 3, 1, 15, 9, 4, 1, 50, 29, 14, 5, 1, 176, 99, 49, 20, 6, 1, 638, 351, 175, 76, 27, 7, 1, 2354, 1275, 637, 286, 111, 35, 8, 1, 8789, 4707, 2353, 1078, 441, 155, 44, 9, 1, 33099, 17577, 8788, 4081, 1728, 650, 209, 54, 10, 1]

cp's OEIS Frontend

A361654 Triangle read by rows where T(n,k) is the number of nonempty subsets of {1,...,2n-1} with median n and minimum k.

Table of values

List of values