A049009 - cp's OEIS frontend

A049009 Number of functions from a set to itself such that the sizes of the preimages of the individual elements in the range form the n-th partition in Abramowitz and Stegun order.

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	18
6	6
7	4
8	48
9	36
10	144
11	24
12	5
13	100
14	200
15	600
16	900
17	1200
18	120
19	6
20	180
21	450
22	300
23	1800
24	7200
25	1800
26	7200
27	16200
28	10800
29	720
30	7
31	294
32	882
33	1470
34	4410
35	22050
36	14700
37	22050
38	29400
39	176400
40	88200
41	88200
42	264600
43	105840
44	5040
45	8
46	448
47	1568
48	3136
49	1960

[1, 1, 2, 2, 3, 18, 6, 4, 48, 36, 144, 24, 5, 100, 200, 600, 900, 1200, 120, 6, 180, 450, 300, 1800, 7200, 1800, 7200, 16200, 10800, 720, 7, 294, 882, 1470, 4410, 22050, 14700, 22050, 29400, 176400, 88200, 88200, 264600, 105840, 5040, 8, 448, 1568, 3136, 1960]

cp's OEIS Frontend

A049009 Number of functions from a set to itself such that the sizes of the preimages of the individual elements in the range form the n-th partition in Abramowitz and Stegun order.

Table of values

List of values