A325440 - cp's OEIS frontend

A325440 a(n) is the least number not 2a(m)-1 or 3a(m)-1 for any m < n.

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	12
8	13
9	14
10	15
11	16
12	18
13	20
14	21
15	22
16	24
17	28
18	30
19	32
20	33
21	34
22	36
23	37
24	40
25	42
26	45
27	46
28	48
29	49
30	50
31	51
32	52
33	54
34	56
35	57
36	58
37	60
38	61
39	64
40	66
41	68
42	69
43	70
44	72
45	74
46	75
47	76
48	77
49	78
50	80
51	81
52	82
53	84
54	85
55	86
56	87
57	88
58	90
59	92
60	93
61	94
62	96
63	100
64	102
65	104

[1, 3, 4, 6, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 34, 36, 37, 40, 42, 45, 46, 48, 49, 50, 51, 52, 54, 56, 57, 58, 60, 61, 64, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 92, 93, 94, 96, 100, 102, 104]

cp's OEIS Frontend

A325440 a(n) is the least number not 2a(m)-1 or 3a(m)-1 for any m < n.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	12
8	13
9	14
10	15
11	16
12	18
13	20
14	21
15	22
16	24
17	28
18	30
19	32
20	33
21	34
22	36
23	37
24	40
25	42
26	45
27	46
28	48
29	49
30	50
31	51
32	52
33	54
34	56
35	57
36	58
37	60
38	61
39	64
40	66
41	68
42	69
43	70
44	72
45	74
46	75
47	76
48	77
49	78
50	80
51	81
52	82
53	84
54	85
55	86
56	87
57	88
58	90
59	92
60	93
61	94
62	96
63	100
64	102
65	104

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	12
8	13
9	14
10	15
11	16
12	18
13	20
14	21
15	22
16	24
17	28
18	30
19	32
20	33
21	34
22	36
23	37
24	40
25	42
26	45
27	46
28	48
29	49
30	50
31	51
32	52
33	54
34	56
35	57
36	58
37	60
38	61
39	64
40	66
41	68
42	69
43	70
44	72
45	74
46	75
47	76
48	77
49	78
50	80
51	81
52	82
53	84
54	85
55	86
56	87
57	88
58	90
59	92
60	93
61	94
62	96
63	100
64	102
65	104

cp's OEIS Frontend

A325440 a(n) is the least number not 2*a(m)-1 or 3*a(m)-1 for any m < n.

Table of values

List of values

A325440 a(n) is the least number not 2a(m)-1 or 3a(m)-1 for any m < n.

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	12
8	13
9	14
10	15
11	16
12	18
13	20
14	21
15	22
16	24
17	28
18	30
19	32
20	33
21	34
22	36
23	37
24	40
25	42
26	45
27	46
28	48
29	49
30	50
31	51
32	52
33	54
34	56
35	57
36	58
37	60
38	61
39	64
40	66
41	68
42	69
43	70
44	72
45	74
46	75
47	76
48	77
49	78
50	80
51	81
52	82
53	84
54	85
55	86
56	87
57	88
58	90
59	92
60	93
61	94
62	96
63	100
64	102
65	104