A272679 - cp's OEIS frontend

A272679 a(n)^2 is the smallest square whose binary expansion begins with the binary expansion of n.

n	a(n)
0	0
1	1
2	2
3	5
4	2
5	9
6	5
7	11
8	4
9	3
10	9
11	19
12	5
13	21
14	15
15	11
16	4
17	33
18	6
19	25
20	9
21	13
22	19
23	39
24	7
25	5
26	29
27	21
28	15
29	61
30	11
31	45
32	8
33	23
34	33
35	67
36	6
37	49
38	35
39	25
40	9
41	73
42	13
43	53
44	107
45	19
46	77
47	39
48	79
49	7
50	10
51	81
52	29
53	83
54	59
55	21
56	15
57	43
58	61
59	87
60	11
61	89
62	63
63	45
64	8
65	129
66	23
67	93
68	33
69	47

[0, 1, 2, 5, 2, 9, 5, 11, 4, 3, 9, 19, 5, 21, 15, 11, 4, 33, 6, 25, 9, 13, 19, 39, 7, 5, 29, 21, 15, 61, 11, 45, 8, 23, 33, 67, 6, 49, 35, 25, 9, 73, 13, 53, 107, 19, 77, 39, 79, 7, 10, 81, 29, 83, 59, 21, 15, 43, 61, 87, 11, 89, 63, 45, 8, 129, 23, 93, 33, 47]

cp's OEIS Frontend

A272679 a(n)^2 is the smallest square whose binary expansion begins with the binary expansion of n.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	5
4	2
5	9
6	5
7	11
8	4
9	3
10	9
11	19
12	5
13	21
14	15
15	11
16	4
17	33
18	6
19	25
20	9
21	13
22	19
23	39
24	7
25	5
26	29
27	21
28	15
29	61
30	11
31	45
32	8
33	23
34	33
35	67
36	6
37	49
38	35
39	25
40	9
41	73
42	13
43	53
44	107
45	19
46	77
47	39
48	79
49	7
50	10
51	81
52	29
53	83
54	59
55	21
56	15
57	43
58	61
59	87
60	11
61	89
62	63
63	45
64	8
65	129
66	23
67	93
68	33
69	47

n	a(n)
0	0
1	1
2	2
3	5
4	2
5	9
6	5
7	11
8	4
9	3
10	9
11	19
12	5
13	21
14	15
15	11
16	4
17	33
18	6
19	25
20	9
21	13
22	19
23	39
24	7
25	5
26	29
27	21
28	15
29	61
30	11
31	45
32	8
33	23
34	33
35	67
36	6
37	49
38	35
39	25
40	9
41	73
42	13
43	53
44	107
45	19
46	77
47	39
48	79
49	7
50	10
51	81
52	29
53	83
54	59
55	21
56	15
57	43
58	61
59	87
60	11
61	89
62	63
63	45
64	8
65	129
66	23
67	93
68	33
69	47

n	a(n)
0	0
1	1
2	2
3	5
4	2
5	9
6	5
7	11
8	4
9	3
10	9
11	19
12	5
13	21
14	15
15	11
16	4
17	33
18	6
19	25
20	9
21	13
22	19
23	39
24	7
25	5
26	29
27	21
28	15
29	61
30	11
31	45
32	8
33	23
34	33
35	67
36	6
37	49
38	35
39	25
40	9
41	73
42	13
43	53
44	107
45	19
46	77
47	39
48	79
49	7
50	10
51	81
52	29
53	83
54	59
55	21
56	15
57	43
58	61
59	87
60	11
61	89
62	63
63	45
64	8
65	129
66	23
67	93
68	33
69	47