A228723 - OEIS

A228723 as a simple table

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

[0,1,2,3,4,5,6,7,8,9,10,12,12,14,14,16,16,18,18, 21,21,21,23,23,25,25,27,27,29,29,30,32,32,34,34, 36,36,38,38,41,41,41,43,43,45,45,47,47,49,49,50, 52,52,54,54,56,56,58,58,61,61,61,63,63,65,65,67]

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

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

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