A370197 - cp's OEIS frontend

A370197 a(n) is the number of ways to place n indistinguishable balls into n distinguishable boxes with at least 4 boxes remaining empty.

n	a(n)
1	0
2	0
3	0
4	0
5	5
6	81
7	658
8	3830
9	18525
10	80587
11	330330
12	1312015
13	5132075
14	19946915
15	77383374
16	300272554
17	1166405717
18	4536991655
19	17671814690
20	68922126879
21	269127380699
22	1052047384687
23	4116712577510
24	16123798186665
25	63205298480275
26	247959260395901
27	973469705104278

[0, 0, 0, 0, 5, 81, 658, 3830, 18525, 80587, 330330, 1312015, 5132075, 19946915, 77383374, 300272554, 1166405717, 4536991655, 17671814690, 68922126879, 269127380699, 1052047384687, 4116712577510, 16123798186665, 63205298480275, 247959260395901, 973469705104278]

cp's OEIS Frontend

A370197 a(n) is the number of ways to place n indistinguishable balls into n distinguishable boxes with at least 4 boxes remaining empty.

Table of values

List of values