A176774 - cp's OEIS frontend

A176774 Smallest polygonality of n = smallest integer m>=3 such that n is m-gonal number.

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

[3, 4, 5, 3, 7, 8, 4, 3, 11, 5, 13, 14, 3, 4, 17, 7, 19, 20, 3, 5, 23, 9, 4, 26, 10, 3, 29, 11, 31, 32, 12, 7, 5, 3, 37, 38, 14, 8, 41, 15, 43, 44, 3, 9, 47, 17, 4, 50, 5, 10, 53, 19, 3, 56, 20, 11, 59, 21, 61, 62, 22, 4, 8, 3, 67, 68, 24, 5, 71, 25, 73, 74, 9, 14, 77, 3, 79, 80, 4, 15, 83]

cp's OEIS Frontend

A176774 Smallest polygonality of n = smallest integer m>=3 such that n is m-gonal number.

Table of values

List of values

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

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

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