A188211 - cp's OEIS frontend

A188211 T(n,k)=Number of nondecreasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	5
7	1
8	4
9	8
10	18
11	1
12	5
13	13
14	33
15	73
16	1
17	6
18	18
19	55
20	141
21	338
22	1
23	7
24	25
25	86
26	252
27	676
28	1656
29	1
30	8
31	32
32	126
33	414
34	1242
35	3370
36	8512
37	1
38	9
39	41
40	177
41	649
42	2137
43	6375
44	17575
45	45207
46	1
47	10
48	50
49	241
50	967
51	3486
52	11322
53	33885
54	94257
55	246448
56	1
57	11
58	61
59	318
60	1394
61	5444

[1, 1, 2, 1, 3, 5, 1, 4, 8, 18, 1, 5, 13, 33, 73, 1, 6, 18, 55, 141, 338, 1, 7, 25, 86, 252, 676, 1656, 1, 8, 32, 126, 414, 1242, 3370, 8512, 1, 9, 41, 177, 649, 2137, 6375, 17575, 45207, 1, 10, 50, 241, 967, 3486, 11322, 33885, 94257, 246448, 1, 11, 61, 318, 1394, 5444]

cp's OEIS Frontend

A188211 T(n,k)=Number of nondecreasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero.

Table of values

List of values