A378999 - cp's OEIS frontend

A378999 Number of trailing 1-bits in the binary representation of sigma(n^2).

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

[1, 3, 1, 5, 5, 2, 1, 7, 1, 1, 1, 2, 3, 4, 2, 9, 2, 4, 1, 1, 1, 2, 1, 2, 1, 1, 1, 3, 3, 1, 1, 11, 1, 1, 3, 3, 7, 2, 2, 1, 2, 2, 1, 2, 3, 5, 1, 2, 1, 2, 3, 1, 4, 2, 2, 3, 1, 1, 1, 1, 3, 3, 1, 13, 1, 3, 1, 1, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 1, 6, 3, 1, 3, 2, 2, 2, 3, 1, 2, 6, 1, 1, 1, 2]

cp's OEIS Frontend

A378999 Number of trailing 1-bits in the binary representation of sigma(n^2).

Table of values

List of values

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

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

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