A279170 - cp's OEIS frontend

A279170 a(n) is the smallest among the natural numbers m with the property that there exists a non-constant quadratic map S^n -> S^m from the n-dimensional sphere to the m-dimensional sphere.

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

[1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 24, 24, 24, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 48, 48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 56, 56, 56, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 72, 72, 72, 72, 80, 80, 80, 80, 80, 80, 80, 80, 80, 88, 88, 88, 88, 88, 88, 88, 96, 96, 96, 96, 96]

cp's OEIS Frontend

A279170 a(n) is the smallest among the natural numbers m with the property that there exists a non-constant quadratic map S^n -> S^m from the n-dimensional sphere to the m-dimensional sphere.

Table of values

List of values

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

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

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