A293664 - cp's OEIS frontend

A293664 For n >= 0, let E_n be the set of exponents in expression of 2n as a sum of distinct powers of 2 (2n = Sum_{e in E_n} 2^e); a(n) = number of distinct values taken by the expression Sum_{e in E_n} s(e)*2^e when s runs over all functions from the positive numbers to the set { +1, -1 }.

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

[1, 2, 2, 4, 2, 4, 4, 7, 2, 4, 4, 8, 4, 7, 8, 11, 2, 4, 4, 8, 4, 8, 7, 12, 4, 7, 8, 13, 8, 12, 13, 16, 2, 4, 4, 8, 4, 8, 8, 13, 4, 8, 7, 14, 8, 13, 14, 17, 4, 7, 8, 13, 8, 14, 13, 18, 8, 12, 14, 19, 15, 18, 19, 22, 2, 4, 4, 8, 4, 8, 8, 14, 4, 8, 8, 15, 7, 12]

cp's OEIS Frontend

A293664 For n >= 0, let E_n be the set of exponents in expression of 2n as a sum of distinct powers of 2 (2n = Sum_{e in E_n} 2^e); a(n) = number of distinct values taken by the expression Sum_{e in E_n} s(e)*2^e when s runs over all functions from the positive numbers to the set { +1, -1 }.

Table of values

List of values

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

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

cp's OEIS Frontend

A293664 For n >= 0, let E_n be the set of exponents in expression of 2*n as a sum of distinct powers of 2 (2*n = Sum_{e in E_n} 2^e); a(n) = number of distinct values taken by the expression Sum_{e in E_n} s(e)*2^e when s runs over all functions from the positive numbers to the set { +1, -1 }.

Table of values

List of values

A293664 For n >= 0, let E_n be the set of exponents in expression of 2n as a sum of distinct powers of 2 (2n = Sum_{e in E_n} 2^e); a(n) = number of distinct values taken by the expression Sum_{e in E_n} s(e)*2^e when s runs over all functions from the positive numbers to the set { +1, -1 }.

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