A180020 - OEIS

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A180020 as a simple table

n	a(n)
1	0
2	0
3	3
4	4
5	7
6	7
7	9
8	10
9	12
10	14
11	14
12	17
13	17
14	19
15	21
16	22
17	23
18	25
19	26
20	28
21	29
22	31
23	32
24	34
25	35
26	36
27	38
28	39
29	41
30	42
31	44
32	45
33	46
34	48
35	49
36	51
37	53
38	53
39	55
40	57
41	58
42	60
43	60
44	63
45	64
46	65
47	67
48	68
49	69
50	71
51	73
52	74
53	75
54	77
55	78
56	80
57	81
58	83
59	84
60	85
61	87
62	88
63	90
64	91
65	93
66	94
67	96
68	97
69	98
70	100
71	101

[0,0,3,4,7,7,9,10,12,14,14,17,17,19,21,22,23,25, 26,28,29,31,32,34,35,36,38,39,41,42,44,45,46,48, 49,51,53,53,55,57,58,60,60,63,64,65,67,68,69,71, 73,74,75,77,78,80,81,83,84,85,87,88,90,91,93,94, 96,97,98,100,101]

n	a(n)
1	0
2	0
3	3
4	4
5	7
6	7
7	9
8	10
9	12
10	14
11	14
12	17
13	17
14	19
15	21
16	22
17	23
18	25
19	26
20	28
21	29
22	31
23	32
24	34
25	35
26	36
27	38
28	39
29	41
30	42
31	44
32	45
33	46
34	48
35	49
36	51
37	53
38	53
39	55
40	57
41	58
42	60
43	60
44	63
45	64
46	65
47	67
48	68
49	69
50	71
51	73
52	74
53	75
54	77
55	78
56	80
57	81
58	83
59	84
60	85
61	87
62	88
63	90
64	91
65	93
66	94
67	96
68	97
69	98
70	100
71	101

n	a(n)
1	0
2	0
3	3
4	4
5	7
6	7
7	9
8	10
9	12
10	14
11	14
12	17
13	17
14	19
15	21
16	22
17	23
18	25
19	26
20	28
21	29
22	31
23	32
24	34
25	35
26	36
27	38
28	39
29	41
30	42
31	44
32	45
33	46
34	48
35	49
36	51
37	53
38	53
39	55
40	57
41	58
42	60
43	60
44	63
45	64
46	65
47	67
48	68
49	69
50	71
51	73
52	74
53	75
54	77
55	78
56	80
57	81
58	83
59	84
60	85
61	87
62	88
63	90
64	91
65	93
66	94
67	96
68	97
69	98
70	100
71	101

n	a(n)
1	0
2	0
3	3
4	4
5	7
6	7
7	9
8	10
9	12
10	14
11	14
12	17
13	17
14	19
15	21
16	22
17	23
18	25
19	26
20	28
21	29
22	31
23	32
24	34
25	35
26	36
27	38
28	39
29	41
30	42
31	44
32	45
33	46
34	48
35	49
36	51
37	53
38	53
39	55
40	57
41	58
42	60
43	60
44	63
45	64
46	65
47	67
48	68
49	69
50	71
51	73
52	74
53	75
54	77
55	78
56	80
57	81
58	83
59	84
60	85
61	87
62	88
63	90
64	91
65	93
66	94
67	96
68	97
69	98
70	100
71	101