A105566 - OEIS

A105566 as a simple table

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	4
7	5
8	5
9	6
10	7
11	8
12	9
13	9
14	10
15	11
16	12
17	13
18	13
19	14
20	15
21	16
22	16
23	17
24	18
25	19
26	20
27	20
28	21
29	22
30	23
31	24
32	24
33	25
34	26
35	27
36	27
37	28
38	29
39	30
40	31
41	31
42	32
43	33
44	34
45	34
46	35
47	36
48	37
49	38
50	38
51	39
52	40
53	41
54	42
55	42
56	43
57	44
58	45
59	45
60	46
61	47
62	48
63	49
64	49
65	50
66	51
67	52
68	53
69	53
70	54
71	55
72	56
73	56
74	57

[0,1,2,2,3,4,5,5,6,7,8,9,9,10,11,12,13,13,14,15, 16,16,17,18,19,20,20,21,22,23,24,24,25,26,27,27, 28,29,30,31,31,32,33,34,34,35,36,37,38,38,39,40, 41,42,42,43,44,45,45,46,47,48,49,49,50,51,52,53, 53,54,55,56,56,57]

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	4
7	5
8	5
9	6
10	7
11	8
12	9
13	9
14	10
15	11
16	12
17	13
18	13
19	14
20	15
21	16
22	16
23	17
24	18
25	19
26	20
27	20
28	21
29	22
30	23
31	24
32	24
33	25
34	26
35	27
36	27
37	28
38	29
39	30
40	31
41	31
42	32
43	33
44	34
45	34
46	35
47	36
48	37
49	38
50	38
51	39
52	40
53	41
54	42
55	42
56	43
57	44
58	45
59	45
60	46
61	47
62	48
63	49
64	49
65	50
66	51
67	52
68	53
69	53
70	54
71	55
72	56
73	56
74	57

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	4
7	5
8	5
9	6
10	7
11	8
12	9
13	9
14	10
15	11
16	12
17	13
18	13
19	14
20	15
21	16
22	16
23	17
24	18
25	19
26	20
27	20
28	21
29	22
30	23
31	24
32	24
33	25
34	26
35	27
36	27
37	28
38	29
39	30
40	31
41	31
42	32
43	33
44	34
45	34
46	35
47	36
48	37
49	38
50	38
51	39
52	40
53	41
54	42
55	42
56	43
57	44
58	45
59	45
60	46
61	47
62	48
63	49
64	49
65	50
66	51
67	52
68	53
69	53
70	54
71	55
72	56
73	56
74	57

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	4
7	5
8	5
9	6
10	7
11	8
12	9
13	9
14	10
15	11
16	12
17	13
18	13
19	14
20	15
21	16
22	16
23	17
24	18
25	19
26	20
27	20
28	21
29	22
30	23
31	24
32	24
33	25
34	26
35	27
36	27
37	28
38	29
39	30
40	31
41	31
42	32
43	33
44	34
45	34
46	35
47	36
48	37
49	38
50	38
51	39
52	40
53	41
54	42
55	42
56	43
57	44
58	45
59	45
60	46
61	47
62	48
63	49
64	49
65	50
66	51
67	52
68	53
69	53
70	54
71	55
72	56
73	56
74	57