A023806 - OEIS

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A023806 as a simple table

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

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

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

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

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