A327195 - cp's OEIS frontend

A327195 For any n >= 0: consider the different ways to split the binary representation of n into two (possibly empty) parts, say with value x and y; 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	9
13	8
14	5
15	0
16	1
17	0
18	0
19	5
20	12
21	21
22	21
23	16
24	9
25	8
26	5
27	0
28	7
29	16
30	27
31	40
32	1
33	0
34	0
35	5
36	0
37	9
38	20
39	33
40	25
41	24
42	21
43	16
44	9
45	0
46	11
47	24
48	9
49	8
50	5
51	0
52	7
53	11
54	0
55	13
56	49
57	48
58	45
59	40
60	33
61	24
62	13
63	0
64	1
65	0
66	0
67	5
68	0
69	9
70	20
71	15
72	48
73	65
74	77
75	72
76	65

[0, 1, 1, 0, 1, 0, 3, 8, 1, 0, 0, 5, 9, 8, 5, 0, 1, 0, 0, 5, 12, 21, 21, 16, 9, 8, 5, 0, 7, 16, 27, 40, 1, 0, 0, 5, 0, 9, 20, 33, 25, 24, 21, 16, 9, 0, 11, 24, 9, 8, 5, 0, 7, 11, 0, 13, 49, 48, 45, 40, 33, 24, 13, 0, 1, 0, 0, 5, 0, 9, 20, 15, 48, 65, 77, 72, 65]

cp's OEIS Frontend

A327195 For any n >= 0: consider the different ways to split the binary representation of n into two (possibly empty) parts, say with value x and y; 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	9
13	8
14	5
15	0
16	1
17	0
18	0
19	5
20	12
21	21
22	21
23	16
24	9
25	8
26	5
27	0
28	7
29	16
30	27
31	40
32	1
33	0
34	0
35	5
36	0
37	9
38	20
39	33
40	25
41	24
42	21
43	16
44	9
45	0
46	11
47	24
48	9
49	8
50	5
51	0
52	7
53	11
54	0
55	13
56	49
57	48
58	45
59	40
60	33
61	24
62	13
63	0
64	1
65	0
66	0
67	5
68	0
69	9
70	20
71	15
72	48
73	65
74	77
75	72
76	65

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

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