A318515 - cp's OEIS frontend

A318515 a(n) = n AND A032742(n), where AND is bitwise-and (A004198) and A032742 = the largest proper divisor of n.

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	2
7	1
8	0
9	1
10	0
11	1
12	4
13	1
14	6
15	5
16	0
17	1
18	0
19	1
20	0
21	5
22	2
23	1
24	8
25	1
26	8
27	9
28	12
29	1
30	14
31	1
32	0
33	1
34	0
35	3
36	0
37	1
38	2
39	5
40	0
41	1
42	0
43	1
44	4
45	13
46	6
47	1
48	16
49	1
50	16
51	17
52	16
53	1
54	18
55	3
56	24
57	17
58	24
59	1
60	28
61	1
62	30
63	21
64	0
65	1
66	0
67	1
68	0
69	5
70	2
71	1
72	0
73	1
74	0
75	9
76	4
77	9
78	6
79	1
80	0
81	17
82	0
83	1
84	0
85	17
86	2
87	21
88	8
89	1
90	8
91	9
92	12
93	29
94	14
95	19
96	32
97	1
98	32
99	33
100	32
101	1
102	34
103	1
104	32
105	33

[1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 4, 1, 6, 5, 0, 1, 0, 1, 0, 5, 2, 1, 8, 1, 8, 9, 12, 1, 14, 1, 0, 1, 0, 3, 0, 1, 2, 5, 0, 1, 0, 1, 4, 13, 6, 1, 16, 1, 16, 17, 16, 1, 18, 3, 24, 17, 24, 1, 28, 1, 30, 21, 0, 1, 0, 1, 0, 5, 2, 1, 0, 1, 0, 9, 4, 9, 6, 1, 0, 17, 0, 1, 0, 17, 2, 21, 8, 1, 8, 9, 12, 29, 14, 19, 32, 1, 32, 33, 32, 1, 34, 1, 32, 33]

cp's OEIS Frontend

A318515 a(n) = n AND A032742(n), where AND is bitwise-and (A004198) and A032742 = the largest proper divisor of n.

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	2
7	1
8	0
9	1
10	0
11	1
12	4
13	1
14	6
15	5
16	0
17	1
18	0
19	1
20	0
21	5
22	2
23	1
24	8
25	1
26	8
27	9
28	12
29	1
30	14
31	1
32	0
33	1
34	0
35	3
36	0
37	1
38	2
39	5
40	0
41	1
42	0
43	1
44	4
45	13
46	6
47	1
48	16
49	1
50	16
51	17
52	16
53	1
54	18
55	3
56	24
57	17
58	24
59	1
60	28
61	1
62	30
63	21
64	0
65	1
66	0
67	1
68	0
69	5
70	2
71	1
72	0
73	1
74	0
75	9
76	4
77	9
78	6
79	1
80	0
81	17
82	0
83	1
84	0
85	17
86	2
87	21
88	8
89	1
90	8
91	9
92	12
93	29
94	14
95	19
96	32
97	1
98	32
99	33
100	32
101	1
102	34
103	1
104	32
105	33

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	2
7	1
8	0
9	1
10	0
11	1
12	4
13	1
14	6
15	5
16	0
17	1
18	0
19	1
20	0
21	5
22	2
23	1
24	8
25	1
26	8
27	9
28	12
29	1
30	14
31	1
32	0
33	1
34	0
35	3
36	0
37	1
38	2
39	5
40	0
41	1
42	0
43	1
44	4
45	13
46	6
47	1
48	16
49	1
50	16
51	17
52	16
53	1
54	18
55	3
56	24
57	17
58	24
59	1
60	28
61	1
62	30
63	21
64	0
65	1
66	0
67	1
68	0
69	5
70	2
71	1
72	0
73	1
74	0
75	9
76	4
77	9
78	6
79	1
80	0
81	17
82	0
83	1
84	0
85	17
86	2
87	21
88	8
89	1
90	8
91	9
92	12
93	29
94	14
95	19
96	32
97	1
98	32
99	33
100	32
101	1
102	34
103	1
104	32
105	33

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	2
7	1
8	0
9	1
10	0
11	1
12	4
13	1
14	6
15	5
16	0
17	1
18	0
19	1
20	0
21	5
22	2
23	1
24	8
25	1
26	8
27	9
28	12
29	1
30	14
31	1
32	0
33	1
34	0
35	3
36	0
37	1
38	2
39	5
40	0
41	1
42	0
43	1
44	4
45	13
46	6
47	1
48	16
49	1
50	16
51	17
52	16
53	1
54	18
55	3
56	24
57	17
58	24
59	1
60	28
61	1
62	30
63	21
64	0
65	1
66	0
67	1
68	0
69	5
70	2
71	1
72	0
73	1
74	0
75	9
76	4
77	9
78	6
79	1
80	0
81	17
82	0
83	1
84	0
85	17
86	2
87	21
88	8
89	1
90	8
91	9
92	12
93	29
94	14
95	19
96	32
97	1
98	32
99	33
100	32
101	1
102	34
103	1
104	32
105	33