A324659 - cp's OEIS frontend

A324659 a(n) = (1/2)A318468(n), where A318468(n) is bitwise-AND of 2n and sigma(n).

n	a(n)
1	0
2	0
3	2
4	0
5	1
6	6
7	4
8	0
9	0
10	8
11	2
12	12
13	5
14	12
15	12
16	0
17	1
18	18
19	2
20	20
21	16
22	18
23	4
24	24
25	9
26	16
27	16
28	28
29	13
30	4
31	16
32	0
33	0
34	2
35	0
36	36
37	1
38	6
39	4
40	40
41	1
42	32
43	2
44	40
45	37
46	36
47	8
48	48
49	16
50	34
51	32
52	48
53	17
54	52
55	36
56	56
57	40
58	40
59	26
60	20
61	29
62	48
63	52
64	0
65	0
66	64
67	2
68	4
69	0
70	64
71	4
72	64
73	1
74	8
75	10
76	68
77	0
78	68
79	8
80	80
81	16
82	18
83	2
84	80
85	20
86	66
87	20
88	88
89	9
90	80

[0, 0, 2, 0, 1, 6, 4, 0, 0, 8, 2, 12, 5, 12, 12, 0, 1, 18, 2, 20, 16, 18, 4, 24, 9, 16, 16, 28, 13, 4, 16, 0, 0, 2, 0, 36, 1, 6, 4, 40, 1, 32, 2, 40, 37, 36, 8, 48, 16, 34, 32, 48, 17, 52, 36, 56, 40, 40, 26, 20, 29, 48, 52, 0, 0, 64, 2, 4, 0, 64, 4, 64, 1, 8, 10, 68, 0, 68, 8, 80, 16, 18, 2, 80, 20, 66, 20, 88, 9, 80]

cp's OEIS Frontend

A324659 a(n) = (1/2)A318468(n), where A318468(n) is bitwise-AND of 2n and sigma(n).

Table of values

List of values

n	a(n)
1	0
2	0
3	2
4	0
5	1
6	6
7	4
8	0
9	0
10	8
11	2
12	12
13	5
14	12
15	12
16	0
17	1
18	18
19	2
20	20
21	16
22	18
23	4
24	24
25	9
26	16
27	16
28	28
29	13
30	4
31	16
32	0
33	0
34	2
35	0
36	36
37	1
38	6
39	4
40	40
41	1
42	32
43	2
44	40
45	37
46	36
47	8
48	48
49	16
50	34
51	32
52	48
53	17
54	52
55	36
56	56
57	40
58	40
59	26
60	20
61	29
62	48
63	52
64	0
65	0
66	64
67	2
68	4
69	0
70	64
71	4
72	64
73	1
74	8
75	10
76	68
77	0
78	68
79	8
80	80
81	16
82	18
83	2
84	80
85	20
86	66
87	20
88	88
89	9
90	80

n	a(n)
1	0
2	0
3	2
4	0
5	1
6	6
7	4
8	0
9	0
10	8
11	2
12	12
13	5
14	12
15	12
16	0
17	1
18	18
19	2
20	20
21	16
22	18
23	4
24	24
25	9
26	16
27	16
28	28
29	13
30	4
31	16
32	0
33	0
34	2
35	0
36	36
37	1
38	6
39	4
40	40
41	1
42	32
43	2
44	40
45	37
46	36
47	8
48	48
49	16
50	34
51	32
52	48
53	17
54	52
55	36
56	56
57	40
58	40
59	26
60	20
61	29
62	48
63	52
64	0
65	0
66	64
67	2
68	4
69	0
70	64
71	4
72	64
73	1
74	8
75	10
76	68
77	0
78	68
79	8
80	80
81	16
82	18
83	2
84	80
85	20
86	66
87	20
88	88
89	9
90	80

cp's OEIS Frontend

A324659 a(n) = (1/2)*A318468(n), where A318468(n) is bitwise-AND of 2*n and sigma(n).

Table of values

List of values

A324659 a(n) = (1/2)A318468(n), where A318468(n) is bitwise-AND of 2n and sigma(n).

n	a(n)
1	0
2	0
3	2
4	0
5	1
6	6
7	4
8	0
9	0
10	8
11	2
12	12
13	5
14	12
15	12
16	0
17	1
18	18
19	2
20	20
21	16
22	18
23	4
24	24
25	9
26	16
27	16
28	28
29	13
30	4
31	16
32	0
33	0
34	2
35	0
36	36
37	1
38	6
39	4
40	40
41	1
42	32
43	2
44	40
45	37
46	36
47	8
48	48
49	16
50	34
51	32
52	48
53	17
54	52
55	36
56	56
57	40
58	40
59	26
60	20
61	29
62	48
63	52
64	0
65	0
66	64
67	2
68	4
69	0
70	64
71	4
72	64
73	1
74	8
75	10
76	68
77	0
78	68
79	8
80	80
81	16
82	18
83	2
84	80
85	20
86	66
87	20
88	88
89	9
90	80