A075458 - OEIS

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A075458 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	5
10	5
11	5
12	6
13	7
14	8
15	9
16	9
17	9
18	9
19	10
20	11
21	11
22	12
23	12
24	13
25	13

[1,1,1,2,3,3,4,5,5,5,5,6,7,8,9,9,9,9,10,11,11,12, 12,13,13]

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	5
10	5
11	5
12	6
13	7
14	8
15	9
16	9
17	9
18	9
19	10
20	11
21	11
22	12
23	12
24	13
25	13

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	5
10	5
11	5
12	6
13	7
14	8
15	9
16	9
17	9
18	9
19	10
20	11
21	11
22	12
23	12
24	13
25	13

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	4
8	5
9	5
10	5
11	5
12	6
13	7
14	8
15	9
16	9
17	9
18	9
19	10
20	11
21	11
22	12
23	12
24	13
25	13