A337276 - cp's OEIS frontend

A337276 Index of appearance of 2n in A336957, or -1 if 2n never appears.

n	a(n)
1	2
2	-1
3	3
4	-1
5	10
6	7
7	6
8	-1
9	11
10	15
11	14
12	35
13	18
14	19
15	31
16	-1
17	22
18	39
19	23
20	27
21	30
22	43
23	26
24	67
25	42
26	47
27	71
28	34
29	51
30	63
31	46
32	-1
33	75
34	55
35	50
36	79
37	54
38	38
39	83
40	59
41	58
42	62
43	87
44	91
45	90
46	95
47	99
48	94
49	66
50	70
51	86
52	103
53	106
54	98
55	74
56	82
57	119
58	102
59	107
60	123
61	110
62	111
63	118
64	-1
65	115
66	127
67	114
68	122
69	146
70	131
71	134

[2, -1, 3, -1, 10, 7, 6, -1, 11, 15, 14, 35, 18, 19, 31, -1, 22, 39, 23, 27, 30, 43, 26, 67, 42, 47, 71, 34, 51, 63, 46, -1, 75, 55, 50, 79, 54, 38, 83, 59, 58, 62, 87, 91, 90, 95, 99, 94, 66, 70, 86, 103, 106, 98, 74, 82, 119, 102, 107, 123, 110, 111, 118, -1, 115, 127, 114, 122, 146, 131, 134]

cp's OEIS Frontend

A337276 Index of appearance of 2n in A336957, or -1 if 2n never appears.

Table of values

List of values

n	a(n)
1	2
2	-1
3	3
4	-1
5	10
6	7
7	6
8	-1
9	11
10	15
11	14
12	35
13	18
14	19
15	31
16	-1
17	22
18	39
19	23
20	27
21	30
22	43
23	26
24	67
25	42
26	47
27	71
28	34
29	51
30	63
31	46
32	-1
33	75
34	55
35	50
36	79
37	54
38	38
39	83
40	59
41	58
42	62
43	87
44	91
45	90
46	95
47	99
48	94
49	66
50	70
51	86
52	103
53	106
54	98
55	74
56	82
57	119
58	102
59	107
60	123
61	110
62	111
63	118
64	-1
65	115
66	127
67	114
68	122
69	146
70	131
71	134

n	a(n)
1	2
2	-1
3	3
4	-1
5	10
6	7
7	6
8	-1
9	11
10	15
11	14
12	35
13	18
14	19
15	31
16	-1
17	22
18	39
19	23
20	27
21	30
22	43
23	26
24	67
25	42
26	47
27	71
28	34
29	51
30	63
31	46
32	-1
33	75
34	55
35	50
36	79
37	54
38	38
39	83
40	59
41	58
42	62
43	87
44	91
45	90
46	95
47	99
48	94
49	66
50	70
51	86
52	103
53	106
54	98
55	74
56	82
57	119
58	102
59	107
60	123
61	110
62	111
63	118
64	-1
65	115
66	127
67	114
68	122
69	146
70	131
71	134

cp's OEIS Frontend

A337276 Index of appearance of 2*n in A336957, or -1 if 2*n never appears.

Table of values

List of values

A337276 Index of appearance of 2n in A336957, or -1 if 2n never appears.

n	a(n)
1	2
2	-1
3	3
4	-1
5	10
6	7
7	6
8	-1
9	11
10	15
11	14
12	35
13	18
14	19
15	31
16	-1
17	22
18	39
19	23
20	27
21	30
22	43
23	26
24	67
25	42
26	47
27	71
28	34
29	51
30	63
31	46
32	-1
33	75
34	55
35	50
36	79
37	54
38	38
39	83
40	59
41	58
42	62
43	87
44	91
45	90
46	95
47	99
48	94
49	66
50	70
51	86
52	103
53	106
54	98
55	74
56	82
57	119
58	102
59	107
60	123
61	110
62	111
63	118
64	-1
65	115
66	127
67	114
68	122
69	146
70	131
71	134