A383644 - cp's OEIS frontend

A383644 a(n) is the number of zeros in the left half-plane of the Maclaurin polynomial of degree n for exp(z).

n	a(n)
1	1
2	2
3	3
4	4
5	3
6	4
7	5
8	6
9	7
10	6
11	7
12	8
13	9
14	10
15	11
16	10
17	11
18	12
19	13
20	14
21	13
22	14
23	15
24	16
25	17
26	16
27	17
28	18
29	19
30	20
31	19
32	20
33	21
34	22
35	23
36	24
37	23
38	24
39	25
40	26
41	27
42	26
43	27
44	28
45	29
46	30
47	29
48	30
49	31
50	32
51	33
52	32
53	33
54	34
55	35
56	36
57	37
58	36
59	37
60	38
61	39
62	40
63	39
64	40
65	41
66	42
67	43
68	42
69	43
70	44

[1, 2, 3, 4, 3, 4, 5, 6, 7, 6, 7, 8, 9, 10, 11, 10, 11, 12, 13, 14, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 19, 20, 21, 22, 23, 24, 23, 24, 25, 26, 27, 26, 27, 28, 29, 30, 29, 30, 31, 32, 33, 32, 33, 34, 35, 36, 37, 36, 37, 38, 39, 40, 39, 40, 41, 42, 43, 42, 43, 44]

cp's OEIS Frontend

A383644 a(n) is the number of zeros in the left half-plane of the Maclaurin polynomial of degree n for exp(z).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	3
6	4
7	5
8	6
9	7
10	6
11	7
12	8
13	9
14	10
15	11
16	10
17	11
18	12
19	13
20	14
21	13
22	14
23	15
24	16
25	17
26	16
27	17
28	18
29	19
30	20
31	19
32	20
33	21
34	22
35	23
36	24
37	23
38	24
39	25
40	26
41	27
42	26
43	27
44	28
45	29
46	30
47	29
48	30
49	31
50	32
51	33
52	32
53	33
54	34
55	35
56	36
57	37
58	36
59	37
60	38
61	39
62	40
63	39
64	40
65	41
66	42
67	43
68	42
69	43
70	44

n	a(n)
1	1
2	2
3	3
4	4
5	3
6	4
7	5
8	6
9	7
10	6
11	7
12	8
13	9
14	10
15	11
16	10
17	11
18	12
19	13
20	14
21	13
22	14
23	15
24	16
25	17
26	16
27	17
28	18
29	19
30	20
31	19
32	20
33	21
34	22
35	23
36	24
37	23
38	24
39	25
40	26
41	27
42	26
43	27
44	28
45	29
46	30
47	29
48	30
49	31
50	32
51	33
52	32
53	33
54	34
55	35
56	36
57	37
58	36
59	37
60	38
61	39
62	40
63	39
64	40
65	41
66	42
67	43
68	42
69	43
70	44

n	a(n)
1	1
2	2
3	3
4	4
5	3
6	4
7	5
8	6
9	7
10	6
11	7
12	8
13	9
14	10
15	11
16	10
17	11
18	12
19	13
20	14
21	13
22	14
23	15
24	16
25	17
26	16
27	17
28	18
29	19
30	20
31	19
32	20
33	21
34	22
35	23
36	24
37	23
38	24
39	25
40	26
41	27
42	26
43	27
44	28
45	29
46	30
47	29
48	30
49	31
50	32
51	33
52	32
53	33
54	34
55	35
56	36
57	37
58	36
59	37
60	38
61	39
62	40
63	39
64	40
65	41
66	42
67	43
68	42
69	43
70	44