A080596 - cp's OEIS frontend

A080596 a(1)=1; for n >= 2, a(n) is smallest positive integer which is consistent with sequence being monotonically increasing and satisfying a(a(n)) = 2n+3.

n	a(n)
1	1
2	4
3	5
4	7
5	9
6	10
7	11
8	12
9	13
10	15
11	17
12	19
13	21
14	22
15	23
16	24
17	25
18	26
19	27
20	28
21	29
22	31
23	33
24	35
25	37
26	39
27	41
28	43
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	52
37	53
38	54
39	55
40	56
41	57
42	58
43	59
44	60
45	61
46	63
47	65
48	67
49	69
50	71
51	73
52	75
53	77
54	79
55	81
56	83
57	85
58	87
59	89
60	91
61	93
62	94
63	95
64	96
65	97
66	98
67	99
68	100
69	101
70	102

[1, 4, 5, 7, 9, 10, 11, 12, 13, 15, 17, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 33, 35, 37, 39, 41, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102]

cp's OEIS Frontend

A080596 a(1)=1; for n >= 2, a(n) is smallest positive integer which is consistent with sequence being monotonically increasing and satisfying a(a(n)) = 2n+3.

Table of values

List of values

n	a(n)
1	1
2	4
3	5
4	7
5	9
6	10
7	11
8	12
9	13
10	15
11	17
12	19
13	21
14	22
15	23
16	24
17	25
18	26
19	27
20	28
21	29
22	31
23	33
24	35
25	37
26	39
27	41
28	43
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	52
37	53
38	54
39	55
40	56
41	57
42	58
43	59
44	60
45	61
46	63
47	65
48	67
49	69
50	71
51	73
52	75
53	77
54	79
55	81
56	83
57	85
58	87
59	89
60	91
61	93
62	94
63	95
64	96
65	97
66	98
67	99
68	100
69	101
70	102

n	a(n)
1	1
2	4
3	5
4	7
5	9
6	10
7	11
8	12
9	13
10	15
11	17
12	19
13	21
14	22
15	23
16	24
17	25
18	26
19	27
20	28
21	29
22	31
23	33
24	35
25	37
26	39
27	41
28	43
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	52
37	53
38	54
39	55
40	56
41	57
42	58
43	59
44	60
45	61
46	63
47	65
48	67
49	69
50	71
51	73
52	75
53	77
54	79
55	81
56	83
57	85
58	87
59	89
60	91
61	93
62	94
63	95
64	96
65	97
66	98
67	99
68	100
69	101
70	102

n	a(n)
1	1
2	4
3	5
4	7
5	9
6	10
7	11
8	12
9	13
10	15
11	17
12	19
13	21
14	22
15	23
16	24
17	25
18	26
19	27
20	28
21	29
22	31
23	33
24	35
25	37
26	39
27	41
28	43
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	52
37	53
38	54
39	55
40	56
41	57
42	58
43	59
44	60
45	61
46	63
47	65
48	67
49	69
50	71
51	73
52	75
53	77
54	79
55	81
56	83
57	85
58	87
59	89
60	91
61	93
62	94
63	95
64	96
65	97
66	98
67	99
68	100
69	101
70	102