A073772 - cp's OEIS frontend

A073772 Number of highly composite numbers (HCNs) between the n-th highly composite number k and 2k if 2k is a highly composite number, or -1 if 2*k is not a highly composite number.

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

[0, 0, -1, 0, 0, 1, -1, -1, 0, 1, 1, -1, 0, -1, 1, 1, -1, 0, 1, 1, 1, -1, -1, 2, 2, -1, -1, 1, 1, 1, 2, -1, 2, 2, -1, -1, -1, 1, 1, 1, 2, -1, 2, 2, -1, 2, 2, 2, -1, -1, 2, -1, 2, -1, 2, 2, -1, 2, 2, 2, -1, -1, 2, 2, 2, -1, 2, 3, -1, -1, 2, 2, 2, -1, -1, 1, 1, 1, 1, -1, -1, 3, 3, 3, 3, -1, -1, 2, 2, 2, -1, 1, 1, -1, 3, 3, 3, 3]

cp's OEIS Frontend

A073772 Number of highly composite numbers (HCNs) between the n-th highly composite number k and 2k if 2k is a highly composite number, or -1 if 2*k is not a highly composite number.

Table of values

List of values

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

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

cp's OEIS Frontend

A073772 Number of highly composite numbers (HCNs) between the n-th highly composite number k and 2*k if 2*k is a highly composite number, or -1 if 2*k is not a highly composite number.

Table of values

List of values

A073772 Number of highly composite numbers (HCNs) between the n-th highly composite number k and 2k if 2k is a highly composite number, or -1 if 2*k is not a highly composite number.

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