A376956 - cp's OEIS frontend

A376956 a(n) = least k such that n^(2k)/(2 k)! < 1.

n	a(n)
0	1
1	1
2	2
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	21
17	22
18	24
19	25
20	26
21	28
22	29
23	30
24	32
25	33
26	34
27	36
28	37
29	38
30	40
31	41
32	42
33	44
34	45
35	46
36	48
37	49
38	51
39	52
40	53
41	55
42	56
43	57
44	59
45	60
46	61
47	63
48	64
49	65
50	67
51	68
52	69
53	71
54	72
55	74
56	75
57	76
58	78
59	79
60	80
61	82
62	83
63	84
64	86
65	87
66	88

[1, 1, 2, 4, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 24, 25, 26, 28, 29, 30, 32, 33, 34, 36, 37, 38, 40, 41, 42, 44, 45, 46, 48, 49, 51, 52, 53, 55, 56, 57, 59, 60, 61, 63, 64, 65, 67, 68, 69, 71, 72, 74, 75, 76, 78, 79, 80, 82, 83, 84, 86, 87, 88]

cp's OEIS Frontend

A376956 a(n) = least k such that n^(2k)/(2 k)! < 1.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	21
17	22
18	24
19	25
20	26
21	28
22	29
23	30
24	32
25	33
26	34
27	36
28	37
29	38
30	40
31	41
32	42
33	44
34	45
35	46
36	48
37	49
38	51
39	52
40	53
41	55
42	56
43	57
44	59
45	60
46	61
47	63
48	64
49	65
50	67
51	68
52	69
53	71
54	72
55	74
56	75
57	76
58	78
59	79
60	80
61	82
62	83
63	84
64	86
65	87
66	88

n	a(n)
0	1
1	1
2	2
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	21
17	22
18	24
19	25
20	26
21	28
22	29
23	30
24	32
25	33
26	34
27	36
28	37
29	38
30	40
31	41
32	42
33	44
34	45
35	46
36	48
37	49
38	51
39	52
40	53
41	55
42	56
43	57
44	59
45	60
46	61
47	63
48	64
49	65
50	67
51	68
52	69
53	71
54	72
55	74
56	75
57	76
58	78
59	79
60	80
61	82
62	83
63	84
64	86
65	87
66	88

n	a(n)
0	1
1	1
2	2
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	17
14	18
15	19
16	21
17	22
18	24
19	25
20	26
21	28
22	29
23	30
24	32
25	33
26	34
27	36
28	37
29	38
30	40
31	41
32	42
33	44
34	45
35	46
36	48
37	49
38	51
39	52
40	53
41	55
42	56
43	57
44	59
45	60
46	61
47	63
48	64
49	65
50	67
51	68
52	69
53	71
54	72
55	74
56	75
57	76
58	78
59	79
60	80
61	82
62	83
63	84
64	86
65	87
66	88