A293390 - cp's OEIS frontend

A293390 Least m such that the exponents in expression for n as a sum of distinct powers of 2 are pairwise distinct mod m; a(0) = 0 by convention.

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

[0, 1, 1, 2, 1, 3, 2, 3, 1, 2, 3, 4, 2, 4, 3, 4, 1, 3, 2, 5, 3, 3, 4, 5, 2, 5, 4, 5, 3, 5, 4, 5, 1, 2, 3, 3, 2, 4, 5, 6, 3, 4, 3, 6, 4, 4, 5, 6, 2, 3, 5, 6, 4, 6, 5, 6, 3, 6, 5, 6, 4, 6, 5, 6, 1, 4, 2, 4, 3, 5, 3, 7, 2, 4, 4, 4, 5, 5, 6, 7, 3, 5, 4, 7, 3, 5, 6]

cp's OEIS Frontend

A293390 Least m such that the exponents in expression for n as a sum of distinct powers of 2 are pairwise distinct mod m; a(0) = 0 by convention.

Table of values

List of values

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

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

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