A228019 - cp's OEIS frontend

A228019 Composite numbers whose sum of digits is a composite number.

n	a(n)
1	4
2	6
3	8
4	9
5	15
6	18
7	22
8	24
9	26
10	27
11	28
12	33
13	35
14	36
15	39
16	40
17	42
18	44
19	45
20	46
21	48
22	51
23	54
24	55
25	57
26	60
27	62
28	63
29	64
30	66
31	68
32	69
33	72
34	75
35	77
36	78
37	80
38	81
39	82
40	84
41	86
42	87
43	88
44	90
45	91
46	93
47	95
48	96
49	99
50	105
51	108
52	112
53	114
54	116
55	117
56	118
57	121
58	123
59	125
60	126
61	129
62	130
63	132

[4, 6, 8, 9, 15, 18, 22, 24, 26, 27, 28, 33, 35, 36, 39, 40, 42, 44, 45, 46, 48, 51, 54, 55, 57, 60, 62, 63, 64, 66, 68, 69, 72, 75, 77, 78, 80, 81, 82, 84, 86, 87, 88, 90, 91, 93, 95, 96, 99, 105, 108, 112, 114, 116, 117, 118, 121, 123, 125, 126, 129, 130, 132]

cp's OEIS Frontend

A228019 Composite numbers whose sum of digits is a composite number.

Table of values

List of values

n	a(n)
1	4
2	6
3	8
4	9
5	15
6	18
7	22
8	24
9	26
10	27
11	28
12	33
13	35
14	36
15	39
16	40
17	42
18	44
19	45
20	46
21	48
22	51
23	54
24	55
25	57
26	60
27	62
28	63
29	64
30	66
31	68
32	69
33	72
34	75
35	77
36	78
37	80
38	81
39	82
40	84
41	86
42	87
43	88
44	90
45	91
46	93
47	95
48	96
49	99
50	105
51	108
52	112
53	114
54	116
55	117
56	118
57	121
58	123
59	125
60	126
61	129
62	130
63	132

n	a(n)
1	4
2	6
3	8
4	9
5	15
6	18
7	22
8	24
9	26
10	27
11	28
12	33
13	35
14	36
15	39
16	40
17	42
18	44
19	45
20	46
21	48
22	51
23	54
24	55
25	57
26	60
27	62
28	63
29	64
30	66
31	68
32	69
33	72
34	75
35	77
36	78
37	80
38	81
39	82
40	84
41	86
42	87
43	88
44	90
45	91
46	93
47	95
48	96
49	99
50	105
51	108
52	112
53	114
54	116
55	117
56	118
57	121
58	123
59	125
60	126
61	129
62	130
63	132

n	a(n)
1	4
2	6
3	8
4	9
5	15
6	18
7	22
8	24
9	26
10	27
11	28
12	33
13	35
14	36
15	39
16	40
17	42
18	44
19	45
20	46
21	48
22	51
23	54
24	55
25	57
26	60
27	62
28	63
29	64
30	66
31	68
32	69
33	72
34	75
35	77
36	78
37	80
38	81
39	82
40	84
41	86
42	87
43	88
44	90
45	91
46	93
47	95
48	96
49	99
50	105
51	108
52	112
53	114
54	116
55	117
56	118
57	121
58	123
59	125
60	126
61	129
62	130
63	132