A138370 - cp's OEIS frontend

A138370 Count of post-period decimal digits up to which the rounded n-th convergent to 4sin(2Pi/5) agrees with the exact value.

n	a(n)
2	2
3	3
4	4
5	5
6	5
7	6
8	6
9	8
10	9
11	10
12	11
13	12
14	12
15	13
16	14
17	15
18	15
19	17
20	18
21	17
22	19
23	21
24	21
25	22
26	23
27	25
28	26
29	27
30	29
31	30
32	31
33	33
34	33
35	34
36	35
37	36
38	37
39	38
40	38
41	40
42	41
43	42
44	41
45	42
46	43
47	45
48	44
49	46
50	44
51	47
52	49
53	49
54	50
55	52
56	53
57	54
58	55
59	57
60	59
61	60
62	61
63	63
64	62
65	65
66	67
67	67
68	68
69	70
70	69
71	70
72	70
73	71

[2, 3, 4, 5, 5, 6, 6, 8, 9, 10, 11, 12, 12, 13, 14, 15, 15, 17, 18, 17, 19, 21, 21, 22, 23, 25, 26, 27, 29, 30, 31, 33, 33, 34, 35, 36, 37, 38, 38, 40, 41, 42, 41, 42, 43, 45, 44, 46, 44, 47, 49, 49, 50, 52, 53, 54, 55, 57, 59, 60, 61, 63, 62, 65, 67, 67, 68, 70, 69, 70, 70, 71]

cp's OEIS Frontend

A138370 Count of post-period decimal digits up to which the rounded n-th convergent to 4sin(2Pi/5) agrees with the exact value.

Table of values

List of values

n	a(n)
2	2
3	3
4	4
5	5
6	5
7	6
8	6
9	8
10	9
11	10
12	11
13	12
14	12
15	13
16	14
17	15
18	15
19	17
20	18
21	17
22	19
23	21
24	21
25	22
26	23
27	25
28	26
29	27
30	29
31	30
32	31
33	33
34	33
35	34
36	35
37	36
38	37
39	38
40	38
41	40
42	41
43	42
44	41
45	42
46	43
47	45
48	44
49	46
50	44
51	47
52	49
53	49
54	50
55	52
56	53
57	54
58	55
59	57
60	59
61	60
62	61
63	63
64	62
65	65
66	67
67	67
68	68
69	70
70	69
71	70
72	70
73	71

n	a(n)
2	2
3	3
4	4
5	5
6	5
7	6
8	6
9	8
10	9
11	10
12	11
13	12
14	12
15	13
16	14
17	15
18	15
19	17
20	18
21	17
22	19
23	21
24	21
25	22
26	23
27	25
28	26
29	27
30	29
31	30
32	31
33	33
34	33
35	34
36	35
37	36
38	37
39	38
40	38
41	40
42	41
43	42
44	41
45	42
46	43
47	45
48	44
49	46
50	44
51	47
52	49
53	49
54	50
55	52
56	53
57	54
58	55
59	57
60	59
61	60
62	61
63	63
64	62
65	65
66	67
67	67
68	68
69	70
70	69
71	70
72	70
73	71

cp's OEIS Frontend

A138370 Count of post-period decimal digits up to which the rounded n-th convergent to 4*sin(2*Pi/5) agrees with the exact value.

Table of values

List of values

A138370 Count of post-period decimal digits up to which the rounded n-th convergent to 4sin(2Pi/5) agrees with the exact value.

n	a(n)
2	2
3	3
4	4
5	5
6	5
7	6
8	6
9	8
10	9
11	10
12	11
13	12
14	12
15	13
16	14
17	15
18	15
19	17
20	18
21	17
22	19
23	21
24	21
25	22
26	23
27	25
28	26
29	27
30	29
31	30
32	31
33	33
34	33
35	34
36	35
37	36
38	37
39	38
40	38
41	40
42	41
43	42
44	41
45	42
46	43
47	45
48	44
49	46
50	44
51	47
52	49
53	49
54	50
55	52
56	53
57	54
58	55
59	57
60	59
61	60
62	61
63	63
64	62
65	65
66	67
67	67
68	68
69	70
70	69
71	70
72	70
73	71