A371036 - cp's OEIS frontend

A371036 a(n) is the number of ways to place n indistinguishable balls into n distinguishable boxes with at least one box remaining empty and not all balls placed in a single box.

n	a(n)
1	0
2	0
3	6
4	30
5	120
6	455
7	1708
8	6426
9	24300
10	92367
11	352704
12	1352065
13	5200286
14	20058285
15	77558744
16	300540178
17	1166803092
18	4537567631
19	17672631880
20	68923264389
21	269128937198
22	1052049481837
23	4116715363776
24	16123801841525
25	63205303218850
26	247959266474025
27	973469712824028

[0, 0, 6, 30, 120, 455, 1708, 6426, 24300, 92367, 352704, 1352065, 5200286, 20058285, 77558744, 300540178, 1166803092, 4537567631, 17672631880, 68923264389, 269128937198, 1052049481837, 4116715363776, 16123801841525, 63205303218850, 247959266474025, 973469712824028]

cp's OEIS Frontend

A371036 a(n) is the number of ways to place n indistinguishable balls into n distinguishable boxes with at least one box remaining empty and not all balls placed in a single box.

Table of values

List of values