A347872 - cp's OEIS frontend

A347872 Numbers k such that k and A003415(sigma(k)) have the same parity.

n	a(n)
1	5
2	6
3	8
4	9
5	12
6	13
7	14
8	17
9	18
10	22
11	24
12	25
13	28
14	29
15	30
16	36
17	37
18	38
19	41
20	42
21	44
22	45
23	46
24	48
25	50
26	53
27	54
28	56
29	60
30	61
31	62
32	66
33	70
34	73
35	76
36	78
37	84
38	86
39	88
40	89
41	92
42	94
43	96
44	97
45	100
46	101
47	102
48	108
49	109
50	110
51	112
52	113
53	114
54	117
55	118
56	120
57	124
58	126
59	130
60	132
61	134
62	137
63	138
64	140
65	142
66	144
67	149
68	150
69	152
70	153
71	154
72	156
73	157

[5, 6, 8, 9, 12, 13, 14, 17, 18, 22, 24, 25, 28, 29, 30, 36, 37, 38, 41, 42, 44, 45, 46, 48, 50, 53, 54, 56, 60, 61, 62, 66, 70, 73, 76, 78, 84, 86, 88, 89, 92, 94, 96, 97, 100, 101, 102, 108, 109, 110, 112, 113, 114, 117, 118, 120, 124, 126, 130, 132, 134, 137, 138, 140, 142, 144, 149, 150, 152, 153, 154, 156, 157]

cp's OEIS Frontend

A347872 Numbers k such that k and A003415(sigma(k)) have the same parity.

Table of values

List of values

n	a(n)
1	5
2	6
3	8
4	9
5	12
6	13
7	14
8	17
9	18
10	22
11	24
12	25
13	28
14	29
15	30
16	36
17	37
18	38
19	41
20	42
21	44
22	45
23	46
24	48
25	50
26	53
27	54
28	56
29	60
30	61
31	62
32	66
33	70
34	73
35	76
36	78
37	84
38	86
39	88
40	89
41	92
42	94
43	96
44	97
45	100
46	101
47	102
48	108
49	109
50	110
51	112
52	113
53	114
54	117
55	118
56	120
57	124
58	126
59	130
60	132
61	134
62	137
63	138
64	140
65	142
66	144
67	149
68	150
69	152
70	153
71	154
72	156
73	157

n	a(n)
1	5
2	6
3	8
4	9
5	12
6	13
7	14
8	17
9	18
10	22
11	24
12	25
13	28
14	29
15	30
16	36
17	37
18	38
19	41
20	42
21	44
22	45
23	46
24	48
25	50
26	53
27	54
28	56
29	60
30	61
31	62
32	66
33	70
34	73
35	76
36	78
37	84
38	86
39	88
40	89
41	92
42	94
43	96
44	97
45	100
46	101
47	102
48	108
49	109
50	110
51	112
52	113
53	114
54	117
55	118
56	120
57	124
58	126
59	130
60	132
61	134
62	137
63	138
64	140
65	142
66	144
67	149
68	150
69	152
70	153
71	154
72	156
73	157

n	a(n)
1	5
2	6
3	8
4	9
5	12
6	13
7	14
8	17
9	18
10	22
11	24
12	25
13	28
14	29
15	30
16	36
17	37
18	38
19	41
20	42
21	44
22	45
23	46
24	48
25	50
26	53
27	54
28	56
29	60
30	61
31	62
32	66
33	70
34	73
35	76
36	78
37	84
38	86
39	88
40	89
41	92
42	94
43	96
44	97
45	100
46	101
47	102
48	108
49	109
50	110
51	112
52	113
53	114
54	117
55	118
56	120
57	124
58	126
59	130
60	132
61	134
62	137
63	138
64	140
65	142
66	144
67	149
68	150
69	152
70	153
71	154
72	156
73	157