A010784 - OEIS

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A010784 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	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	102
93	103
94	104
95	105
96	106
97	107
98	108
99	109
100	120

[0,1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,19, 20,21,23,24,25,26,27,28,29,30,31,32,34,35,36,37, 38,39,40,41,42,43,45,46,47,48,49,50,51,52,53,54, 56,57,58,59,60,61,62,63,64,65,67,68,69,70,71,72, 73,74,75,76,78,79,80,81,82,83,84,85,86,87,89,90, 91,92,93,94,95,96,97,98,102,103,104,105,106,107, 108,109,120]

[0,1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,19,
 20,21,23,24,25,26,27,28,29,30,31,32,34,35,36,37,
 38,39,40,41,42,43,45,46,47,48,49,50,51,52,53,54,
 56,57,58,59,60,61,62,63,64,65,67,68,69,70,71,72,
 73,74,75,76,78,79,80,81,82,83,84,85,86,87,89,90,
 91,92,93,94,95,96,97,98,102,103,104,105,106,107,
 108,109,120]

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	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	102
93	103
94	104
95	105
96	106
97	107
98	108
99	109
100	120

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	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	102
93	103
94	104
95	105
96	106
97	107
98	108
99	109
100	120

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	12
13	13
14	14
15	15
16	16
17	17
18	18
19	19
20	20
21	21
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	32
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	42
41	43
42	45
43	46
44	47
45	48
46	49
47	50
48	51
49	52
50	53
51	54
52	56
53	57
54	58
55	59
56	60
57	61
58	62
59	63
60	64
61	65
62	67
63	68
64	69
65	70
66	71
67	72
68	73
69	74
70	75
71	76
72	78
73	79
74	80
75	81
76	82
77	83
78	84
79	85
80	86
81	87
82	89
83	90
84	91
85	92
86	93
87	94
88	95
89	96
90	97
91	98
92	102
93	103
94	104
95	105
96	106
97	107
98	108
99	109
100	120