A253671 - OEIS

A253671 as a simple table

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

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

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

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

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