A325403 - cp's OEIS frontend

A325403 Number of permutations of the multiset of prime factors of 2n whose first part is not 2.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	1
8	0
9	2
10	1
11	1
12	1
13	1
14	1
15	4
16	0
17	1
18	3
19	1
20	1
21	4
22	1
23	1
24	1
25	2
26	1
27	3
28	1
29	1
30	6
31	1
32	0
33	4
34	1
35	4
36	4
37	1
38	1
39	4
40	1
41	1
42	6
43	1
44	1
45	9
46	1
47	1
48	1
49	2
50	3
51	4
52	1
53	1
54	6
55	4
56	1
57	4
58	1
59	1
60	8
61	1
62	1
63	9
64	0
65	4
66	6
67	1
68	1
69	4
70	6
71	1
72	5
73	1
74	1
75	9
76	1
77	4
78	6
79	1
80	1
81	4
82	1
83	1
84	8
85	4
86	1
87	4
88	1
89	1
90	18
91	4
92	1
93	4
94	1
95	4
96	1
97	1
98	3
99	9
100	4
101	1
102	6
103	1
104	1
105	18

[0, 0, 1, 0, 1, 1, 1, 0, 2, 1, 1, 1, 1, 1, 4, 0, 1, 3, 1, 1, 4, 1, 1, 1, 2, 1, 3, 1, 1, 6, 1, 0, 4, 1, 4, 4, 1, 1, 4, 1, 1, 6, 1, 1, 9, 1, 1, 1, 2, 3, 4, 1, 1, 6, 4, 1, 4, 1, 1, 8, 1, 1, 9, 0, 4, 6, 1, 1, 4, 6, 1, 5, 1, 1, 9, 1, 4, 6, 1, 1, 4, 1, 1, 8, 4, 1, 4, 1, 1, 18, 4, 1, 4, 1, 4, 1, 1, 3, 9, 4, 1, 6, 1, 1, 18]

cp's OEIS Frontend

A325403 Number of permutations of the multiset of prime factors of 2n whose first part is not 2.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	1
8	0
9	2
10	1
11	1
12	1
13	1
14	1
15	4
16	0
17	1
18	3
19	1
20	1
21	4
22	1
23	1
24	1
25	2
26	1
27	3
28	1
29	1
30	6
31	1
32	0
33	4
34	1
35	4
36	4
37	1
38	1
39	4
40	1
41	1
42	6
43	1
44	1
45	9
46	1
47	1
48	1
49	2
50	3
51	4
52	1
53	1
54	6
55	4
56	1
57	4
58	1
59	1
60	8
61	1
62	1
63	9
64	0
65	4
66	6
67	1
68	1
69	4
70	6
71	1
72	5
73	1
74	1
75	9
76	1
77	4
78	6
79	1
80	1
81	4
82	1
83	1
84	8
85	4
86	1
87	4
88	1
89	1
90	18
91	4
92	1
93	4
94	1
95	4
96	1
97	1
98	3
99	9
100	4
101	1
102	6
103	1
104	1
105	18

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	1
8	0
9	2
10	1
11	1
12	1
13	1
14	1
15	4
16	0
17	1
18	3
19	1
20	1
21	4
22	1
23	1
24	1
25	2
26	1
27	3
28	1
29	1
30	6
31	1
32	0
33	4
34	1
35	4
36	4
37	1
38	1
39	4
40	1
41	1
42	6
43	1
44	1
45	9
46	1
47	1
48	1
49	2
50	3
51	4
52	1
53	1
54	6
55	4
56	1
57	4
58	1
59	1
60	8
61	1
62	1
63	9
64	0
65	4
66	6
67	1
68	1
69	4
70	6
71	1
72	5
73	1
74	1
75	9
76	1
77	4
78	6
79	1
80	1
81	4
82	1
83	1
84	8
85	4
86	1
87	4
88	1
89	1
90	18
91	4
92	1
93	4
94	1
95	4
96	1
97	1
98	3
99	9
100	4
101	1
102	6
103	1
104	1
105	18

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	1
8	0
9	2
10	1
11	1
12	1
13	1
14	1
15	4
16	0
17	1
18	3
19	1
20	1
21	4
22	1
23	1
24	1
25	2
26	1
27	3
28	1
29	1
30	6
31	1
32	0
33	4
34	1
35	4
36	4
37	1
38	1
39	4
40	1
41	1
42	6
43	1
44	1
45	9
46	1
47	1
48	1
49	2
50	3
51	4
52	1
53	1
54	6
55	4
56	1
57	4
58	1
59	1
60	8
61	1
62	1
63	9
64	0
65	4
66	6
67	1
68	1
69	4
70	6
71	1
72	5
73	1
74	1
75	9
76	1
77	4
78	6
79	1
80	1
81	4
82	1
83	1
84	8
85	4
86	1
87	4
88	1
89	1
90	18
91	4
92	1
93	4
94	1
95	4
96	1
97	1
98	3
99	9
100	4
101	1
102	6
103	1
104	1
105	18