A318462 - cp's OEIS frontend

A318462 a(n) = Sum_{d|n, d < n/d} (d XOR n/d) + {square root of n when n is a square}.

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	8
7	6
8	15
9	11
10	18
11	10
12	24
13	12
14	20
15	20
16	31
17	16
18	35
19	18
20	30
21	24
22	32
23	22
24	52
25	29
26	42
27	36
28	44
29	28
30	56
31	30
32	63
33	40
34	54
35	36
36	87
37	36
38	56
39	52
40	90
41	40
42	80
43	42
44	80
45	68
46	68
47	46
48	116
49	55
50	93
51	68
52	86
53	52
54	112
55	68
56	112
57	72
58	90
59	58
60	144
61	60
62	92
63	98
64	127
65	72
66	136
67	66
68	122
69	88
70	128
71	70
72	171
73	72
74	114
75	110
76	136
77	88
78	152
79	78

[1, 3, 2, 7, 4, 8, 6, 15, 11, 18, 10, 24, 12, 20, 20, 31, 16, 35, 18, 30, 24, 32, 22, 52, 29, 42, 36, 44, 28, 56, 30, 63, 40, 54, 36, 87, 36, 56, 52, 90, 40, 80, 42, 80, 68, 68, 46, 116, 55, 93, 68, 86, 52, 112, 68, 112, 72, 90, 58, 144, 60, 92, 98, 127, 72, 136, 66, 122, 88, 128, 70, 171, 72, 114, 110, 136, 88, 152, 78]

cp's OEIS Frontend

A318462 a(n) = Sum_{d|n, d < n/d} (d XOR n/d) + {square root of n when n is a square}.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	8
7	6
8	15
9	11
10	18
11	10
12	24
13	12
14	20
15	20
16	31
17	16
18	35
19	18
20	30
21	24
22	32
23	22
24	52
25	29
26	42
27	36
28	44
29	28
30	56
31	30
32	63
33	40
34	54
35	36
36	87
37	36
38	56
39	52
40	90
41	40
42	80
43	42
44	80
45	68
46	68
47	46
48	116
49	55
50	93
51	68
52	86
53	52
54	112
55	68
56	112
57	72
58	90
59	58
60	144
61	60
62	92
63	98
64	127
65	72
66	136
67	66
68	122
69	88
70	128
71	70
72	171
73	72
74	114
75	110
76	136
77	88
78	152
79	78

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	8
7	6
8	15
9	11
10	18
11	10
12	24
13	12
14	20
15	20
16	31
17	16
18	35
19	18
20	30
21	24
22	32
23	22
24	52
25	29
26	42
27	36
28	44
29	28
30	56
31	30
32	63
33	40
34	54
35	36
36	87
37	36
38	56
39	52
40	90
41	40
42	80
43	42
44	80
45	68
46	68
47	46
48	116
49	55
50	93
51	68
52	86
53	52
54	112
55	68
56	112
57	72
58	90
59	58
60	144
61	60
62	92
63	98
64	127
65	72
66	136
67	66
68	122
69	88
70	128
71	70
72	171
73	72
74	114
75	110
76	136
77	88
78	152
79	78

n	a(n)
1	1
2	3
3	2
4	7
5	4
6	8
7	6
8	15
9	11
10	18
11	10
12	24
13	12
14	20
15	20
16	31
17	16
18	35
19	18
20	30
21	24
22	32
23	22
24	52
25	29
26	42
27	36
28	44
29	28
30	56
31	30
32	63
33	40
34	54
35	36
36	87
37	36
38	56
39	52
40	90
41	40
42	80
43	42
44	80
45	68
46	68
47	46
48	116
49	55
50	93
51	68
52	86
53	52
54	112
55	68
56	112
57	72
58	90
59	58
60	144
61	60
62	92
63	98
64	127
65	72
66	136
67	66
68	122
69	88
70	128
71	70
72	171
73	72
74	114
75	110
76	136
77	88
78	152
79	78