A376455 - cp's OEIS frontend

A376455 a(n) = least k such that n^(2k+1)/(2k+1)! < 1.

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

[1, 1, 2, 3, 4, 6, 7, 8, 10, 11, 12, 14, 15, 16, 18, 19, 20, 22, 23, 24, 26, 27, 28, 30, 31, 32, 34, 35, 36, 38, 39, 41, 42, 43, 45, 46, 47, 49, 50, 51, 53, 54, 55, 57, 58, 59, 61, 62, 64, 65, 66, 68, 69, 70, 72, 73, 74, 76, 77, 78, 80, 81, 83, 84, 85, 87, 88]

cp's OEIS Frontend

A376455 a(n) = least k such that n^(2k+1)/(2k+1)! < 1.

Table of values

List of values

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

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

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