A141098 - cp's OEIS frontend

A141098 Even numbers not representable as the sum of two coprime composite numbers.

n	a(n)
1	2
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	22
12	24
13	26
14	28
15	30
16	32
17	36
18	38
19	40
20	42
21	48
22	50
23	54
24	56
25	60
26	66
27	70
28	72
29	78
30	80
31	84
32	90
33	96
34	108
35	110
36	120
37	126
38	132
39	138
40	140
41	150
42	180
43	210

[2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 36, 38, 40, 42, 48, 50, 54, 56, 60, 66, 70, 72, 78, 80, 84, 90, 96, 108, 110, 120, 126, 132, 138, 140, 150, 180, 210]

cp's OEIS Frontend

A141098 Even numbers not representable as the sum of two coprime composite numbers.

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	22
12	24
13	26
14	28
15	30
16	32
17	36
18	38
19	40
20	42
21	48
22	50
23	54
24	56
25	60
26	66
27	70
28	72
29	78
30	80
31	84
32	90
33	96
34	108
35	110
36	120
37	126
38	132
39	138
40	140
41	150
42	180
43	210

n	a(n)
1	2
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	22
12	24
13	26
14	28
15	30
16	32
17	36
18	38
19	40
20	42
21	48
22	50
23	54
24	56
25	60
26	66
27	70
28	72
29	78
30	80
31	84
32	90
33	96
34	108
35	110
36	120
37	126
38	132
39	138
40	140
41	150
42	180
43	210

n	a(n)
1	2
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	22
12	24
13	26
14	28
15	30
16	32
17	36
18	38
19	40
20	42
21	48
22	50
23	54
24	56
25	60
26	66
27	70
28	72
29	78
30	80
31	84
32	90
33	96
34	108
35	110
36	120
37	126
38	132
39	138
40	140
41	150
42	180
43	210