A028964 - OEIS

A028964 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	11
12	12
13	13
14	14
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	33
33	34
34	36
35	37
36	38
37	39
38	41
39	42
40	43
41	44
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	55
53	56
54	57
55	58
56	59
57	61
58	62
59	63
60	64
61	66
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	77

[0,1,2,3,4,5,6,7,8,9,11,12,13,14,16,17,18,19,20, 21,22,23,24,25,26,27,28,29,30,31,32,33,34,36,37, 38,39,41,42,43,44,45,46,47,48,49,50,51,52,53,54, 55,56,57,58,59,61,62,63,64,66,67,68,69,70,71,72, 73,74,75,76,77]

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	33
33	34
34	36
35	37
36	38
37	39
38	41
39	42
40	43
41	44
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	55
53	56
54	57
55	58
56	59
57	61
58	62
59	63
60	64
61	66
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	77

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	33
33	34
34	36
35	37
36	38
37	39
38	41
39	42
40	43
41	44
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	55
53	56
54	57
55	58
56	59
57	61
58	62
59	63
60	64
61	66
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	77

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	11
12	12
13	13
14	14
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	33
33	34
34	36
35	37
36	38
37	39
38	41
39	42
40	43
41	44
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	55
53	56
54	57
55	58
56	59
57	61
58	62
59	63
60	64
61	66
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	77