A328736 - cp's OEIS frontend

A328736 Numbers k such that at least one of sopfr(k-1) and sopfr(k+1) is greater than or equal to 2*sopfr(k).

n	a(n)
1	16
2	18
3	20
4	24
5	28
6	30
7	32
8	36
9	40
10	42
11	44
12	45
13	48
14	52
15	54
16	60
17	63
18	66
19	68
20	70
21	72
22	75
23	78
24	80
25	81
26	84
27	85
28	88
29	90
30	95
31	96
32	98
33	100
34	102
35	104
36	105
37	108
38	110
39	112
40	114
41	117
42	119
43	121
44	125
45	126
46	128
47	130
48	132
49	133
50	135
51	136
52	138
53	140
54	143
55	144
56	145

[16, 18, 20, 24, 28, 30, 32, 36, 40, 42, 44, 45, 48, 52, 54, 60, 63, 66, 68, 70, 72, 75, 78, 80, 81, 84, 85, 88, 90, 95, 96, 98, 100, 102, 104, 105, 108, 110, 112, 114, 117, 119, 121, 125, 126, 128, 130, 132, 133, 135, 136, 138, 140, 143, 144, 145]

cp's OEIS Frontend

A328736 Numbers k such that at least one of sopfr(k-1) and sopfr(k+1) is greater than or equal to 2*sopfr(k).

Table of values

List of values

n	a(n)
1	16
2	18
3	20
4	24
5	28
6	30
7	32
8	36
9	40
10	42
11	44
12	45
13	48
14	52
15	54
16	60
17	63
18	66
19	68
20	70
21	72
22	75
23	78
24	80
25	81
26	84
27	85
28	88
29	90
30	95
31	96
32	98
33	100
34	102
35	104
36	105
37	108
38	110
39	112
40	114
41	117
42	119
43	121
44	125
45	126
46	128
47	130
48	132
49	133
50	135
51	136
52	138
53	140
54	143
55	144
56	145

n	a(n)
1	16
2	18
3	20
4	24
5	28
6	30
7	32
8	36
9	40
10	42
11	44
12	45
13	48
14	52
15	54
16	60
17	63
18	66
19	68
20	70
21	72
22	75
23	78
24	80
25	81
26	84
27	85
28	88
29	90
30	95
31	96
32	98
33	100
34	102
35	104
36	105
37	108
38	110
39	112
40	114
41	117
42	119
43	121
44	125
45	126
46	128
47	130
48	132
49	133
50	135
51	136
52	138
53	140
54	143
55	144
56	145

n	a(n)
1	16
2	18
3	20
4	24
5	28
6	30
7	32
8	36
9	40
10	42
11	44
12	45
13	48
14	52
15	54
16	60
17	63
18	66
19	68
20	70
21	72
22	75
23	78
24	80
25	81
26	84
27	85
28	88
29	90
30	95
31	96
32	98
33	100
34	102
35	104
36	105
37	108
38	110
39	112
40	114
41	117
42	119
43	121
44	125
45	126
46	128
47	130
48	132
49	133
50	135
51	136
52	138
53	140
54	143
55	144
56	145