A283833 - cp's OEIS frontend

A283833 For t >= 0, if 2^t + t - 3 <= n <= 2^t + t - 1 then a(n) = 2^t - 1, while if 2^t + t - 1 < n < 2^(t+1) + t - 3 then a(n) = 2^(t+1) + t - 2 - n.

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

[1, 1, 1, 3, 3, 3, 2, 1, 7, 7, 7, 6, 5, 4, 3, 2, 1, 15, 15, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 31, 31, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 63, 63, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52]

cp's OEIS Frontend

A283833 For t >= 0, if 2^t + t - 3 <= n <= 2^t + t - 1 then a(n) = 2^t - 1, while if 2^t + t - 1 < n < 2^(t+1) + t - 3 then a(n) = 2^(t+1) + t - 2 - n.

Table of values

List of values

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

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

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