A266410 - cp's OEIS frontend

A266410 a(n) = (A266419(n) - 1) / 2; numbers n such that 2n+1 is a nonludic number (in A192607).

n	a(n)
1	4
2	7
3	9
4	10
5	13
6	15
7	16
8	17
9	19
10	22
11	24
12	25
13	27
14	28
15	29
16	31
17	32
18	34
19	36
20	37
21	39
22	40
23	42
24	43
25	46
26	47
27	49
28	50
29	51
30	52
31	54
32	55
33	56
34	58
35	61
36	62
37	64
38	66
39	67
40	68
41	69
42	70
43	72
44	73
45	75
46	76
47	77
48	79
49	81
50	82
51	83
52	84
53	85
54	88
55	91
56	92
57	93
58	94
59	95
60	97
61	98
62	99
63	100
64	101
65	102
66	103
67	106
68	107
69	108
70	109
71	112
72	114
73	115
74	118
75	120
76	121

[4, 7, 9, 10, 13, 15, 16, 17, 19, 22, 24, 25, 27, 28, 29, 31, 32, 34, 36, 37, 39, 40, 42, 43, 46, 47, 49, 50, 51, 52, 54, 55, 56, 58, 61, 62, 64, 66, 67, 68, 69, 70, 72, 73, 75, 76, 77, 79, 81, 82, 83, 84, 85, 88, 91, 92, 93, 94, 95, 97, 98, 99, 100, 101, 102, 103, 106, 107, 108, 109, 112, 114, 115, 118, 120, 121]

cp's OEIS Frontend

A266410 a(n) = (A266419(n) - 1) / 2; numbers n such that 2n+1 is a nonludic number (in A192607).

Table of values

List of values

n	a(n)
1	4
2	7
3	9
4	10
5	13
6	15
7	16
8	17
9	19
10	22
11	24
12	25
13	27
14	28
15	29
16	31
17	32
18	34
19	36
20	37
21	39
22	40
23	42
24	43
25	46
26	47
27	49
28	50
29	51
30	52
31	54
32	55
33	56
34	58
35	61
36	62
37	64
38	66
39	67
40	68
41	69
42	70
43	72
44	73
45	75
46	76
47	77
48	79
49	81
50	82
51	83
52	84
53	85
54	88
55	91
56	92
57	93
58	94
59	95
60	97
61	98
62	99
63	100
64	101
65	102
66	103
67	106
68	107
69	108
70	109
71	112
72	114
73	115
74	118
75	120
76	121

n	a(n)
1	4
2	7
3	9
4	10
5	13
6	15
7	16
8	17
9	19
10	22
11	24
12	25
13	27
14	28
15	29
16	31
17	32
18	34
19	36
20	37
21	39
22	40
23	42
24	43
25	46
26	47
27	49
28	50
29	51
30	52
31	54
32	55
33	56
34	58
35	61
36	62
37	64
38	66
39	67
40	68
41	69
42	70
43	72
44	73
45	75
46	76
47	77
48	79
49	81
50	82
51	83
52	84
53	85
54	88
55	91
56	92
57	93
58	94
59	95
60	97
61	98
62	99
63	100
64	101
65	102
66	103
67	106
68	107
69	108
70	109
71	112
72	114
73	115
74	118
75	120
76	121

n	a(n)
1	4
2	7
3	9
4	10
5	13
6	15
7	16
8	17
9	19
10	22
11	24
12	25
13	27
14	28
15	29
16	31
17	32
18	34
19	36
20	37
21	39
22	40
23	42
24	43
25	46
26	47
27	49
28	50
29	51
30	52
31	54
32	55
33	56
34	58
35	61
36	62
37	64
38	66
39	67
40	68
41	69
42	70
43	72
44	73
45	75
46	76
47	77
48	79
49	81
50	82
51	83
52	84
53	85
54	88
55	91
56	92
57	93
58	94
59	95
60	97
61	98
62	99
63	100
64	101
65	102
66	103
67	106
68	107
69	108
70	109
71	112
72	114
73	115
74	118
75	120
76	121