A023980 - OEIS

A023980 as a simple table

n	a(n)
1	3
2	5
3	8
4	9
5	11
6	12
7	17
8	15
9	17
10	18
11	20
12	20
13	24
14	25
15	26
16	24
17	27
18	26
19	30
20	29
21	32
22	34
23	37
24	35
25	37
26	37
27	37
28	36
29	39
30	40
31	44
32	40
33	41
34	45
35	45
36	43
37	48
38	48
39	51
40	48
41	51
42	51
43	56
44	56
45	55
46	56
47	60
48	57
49	59
50	57
51	59
52	60
53	63
54	61
55	63
56	60
57	63
58	65
59	68
60	65
61	71
62	74
63	73
64	68
65	69
66	69
67	73
68	71
69	75
70	75
71	77
72	74
73	78
74	79
75	81
76	81

[3,5,8,9,11,12,17,15,17,18,20,20,24,25,26,24,27, 26,30,29,32,34,37,35,37,37,37,36,39,40,44,40,41, 45,45,43,48,48,51,48,51,51,56,56,55,56,60,57,59, 57,59,60,63,61,63,60,63,65,68,65,71,74,73,68,69, 69,73,71,75,75,77,74,78,79,81,81]

n	a(n)
1	3
2	5
3	8
4	9
5	11
6	12
7	17
8	15
9	17
10	18
11	20
12	20
13	24
14	25
15	26
16	24
17	27
18	26
19	30
20	29
21	32
22	34
23	37
24	35
25	37
26	37
27	37
28	36
29	39
30	40
31	44
32	40
33	41
34	45
35	45
36	43
37	48
38	48
39	51
40	48
41	51
42	51
43	56
44	56
45	55
46	56
47	60
48	57
49	59
50	57
51	59
52	60
53	63
54	61
55	63
56	60
57	63
58	65
59	68
60	65
61	71
62	74
63	73
64	68
65	69
66	69
67	73
68	71
69	75
70	75
71	77
72	74
73	78
74	79
75	81
76	81

n	a(n)
1	3
2	5
3	8
4	9
5	11
6	12
7	17
8	15
9	17
10	18
11	20
12	20
13	24
14	25
15	26
16	24
17	27
18	26
19	30
20	29
21	32
22	34
23	37
24	35
25	37
26	37
27	37
28	36
29	39
30	40
31	44
32	40
33	41
34	45
35	45
36	43
37	48
38	48
39	51
40	48
41	51
42	51
43	56
44	56
45	55
46	56
47	60
48	57
49	59
50	57
51	59
52	60
53	63
54	61
55	63
56	60
57	63
58	65
59	68
60	65
61	71
62	74
63	73
64	68
65	69
66	69
67	73
68	71
69	75
70	75
71	77
72	74
73	78
74	79
75	81
76	81

n	a(n)
1	3
2	5
3	8
4	9
5	11
6	12
7	17
8	15
9	17
10	18
11	20
12	20
13	24
14	25
15	26
16	24
17	27
18	26
19	30
20	29
21	32
22	34
23	37
24	35
25	37
26	37
27	37
28	36
29	39
30	40
31	44
32	40
33	41
34	45
35	45
36	43
37	48
38	48
39	51
40	48
41	51
42	51
43	56
44	56
45	55
46	56
47	60
48	57
49	59
50	57
51	59
52	60
53	63
54	61
55	63
56	60
57	63
58	65
59	68
60	65
61	71
62	74
63	73
64	68
65	69
66	69
67	73
68	71
69	75
70	75
71	77
72	74
73	78
74	79
75	81
76	81