A330963 - cp's OEIS frontend

A330963 For any n >= 0: consider all pairs of numbers (x, y) whose binary representations can be interleaved (or shuffled) to produce the binary representation of n (possibly with leading zeros); a(n) is the least possible value of abs(x^2 - y^2).

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

[0, 1, 1, 0, 1, 0, 3, 8, 1, 0, 0, 5, 0, 5, 5, 0, 1, 0, 0, 5, 0, 5, 5, 0, 9, 7, 5, 0, 7, 16, 27, 40, 1, 0, 0, 5, 0, 5, 5, 0, 0, 7, 5, 0, 7, 0, 11, 24, 0, 8, 5, 0, 7, 0, 0, 13, 20, 11, 0, 13, 0, 13, 13, 0, 1, 0, 0, 5, 0, 5, 5, 0, 0, 7, 5, 0, 7, 0, 11, 24, 0, 8, 5]

cp's OEIS Frontend

A330963 For any n >= 0: consider all pairs of numbers (x, y) whose binary representations can be interleaved (or shuffled) to produce the binary representation of n (possibly with leading zeros); a(n) is the least possible value of abs(x^2 - y^2).

Table of values

List of values

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

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

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