A033306 - OEIS

A033306 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	2
6	5
7	6
8	6
9	5
10	15
11	20
12	24
13	20
14	15
15	52
16	75
17	100
18	100
19	75
20	52
21	203
22	312
23	450
24	500
25	450
26	312
27	203
28	877
29	1421
30	2184
31	2625
32	2625
33	2184
34	1421
35	877
36	4140
37	7016
38	11368
39	14560
40	15750
41	14560
42	11368
43	7016
44	4140
45	21147
46	37260
47	63144
48	85260
49	98280
50	98280
51	85260
52	63144
53	37260
54	21147

[1,1,1,2,2,2,5,6,6,5,15,20,24,20,15,52,75,100,100, 75,52,203,312,450,500,450,312,203,877,1421,2184, 2625,2625,2184,1421,877,4140,7016,11368,14560, 15750,14560,11368,7016,4140,21147,37260,63144, 85260,98280,98280,85260,63144,37260,21147]