A156253 - OEIS

A156253 as a simple table

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

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

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

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

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