A211265 - cp's OEIS frontend

A211265 Number of integer pairs (x,y) such that 0 and x*y<=n+1.

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	8
8	9
9	11
10	12
11	15
12	16
13	18
14	20
15	22
16	23
17	26
18	27
19	30
20	32
21	34
22	35
23	39
24	40
25	42
26	44
27	47
28	48
29	52
30	53
31	56
32	58
33	60
34	62
35	66
36	67
37	69
38	71
39	75
40	76
41	80
42	81
43	84
44	87
45	89
46	90
47	95
48	96
49	99
50	101
51	104
52	105
53	109
54	111
55	115
56	117
57	119
58	120
59	126
60	127
61	129
62	132
63	135
64	137

[0, 1, 2, 3, 5, 6, 8, 9, 11, 12, 15, 16, 18, 20, 22, 23, 26, 27, 30, 32, 34, 35, 39, 40, 42, 44, 47, 48, 52, 53, 56, 58, 60, 62, 66, 67, 69, 71, 75, 76, 80, 81, 84, 87, 89, 90, 95, 96, 99, 101, 104, 105, 109, 111, 115, 117, 119, 120, 126, 127, 129, 132, 135, 137]

cp's OEIS Frontend

A211265 Number of integer pairs (x,y) such that 0 and x*y<=n+1.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	8
8	9
9	11
10	12
11	15
12	16
13	18
14	20
15	22
16	23
17	26
18	27
19	30
20	32
21	34
22	35
23	39
24	40
25	42
26	44
27	47
28	48
29	52
30	53
31	56
32	58
33	60
34	62
35	66
36	67
37	69
38	71
39	75
40	76
41	80
42	81
43	84
44	87
45	89
46	90
47	95
48	96
49	99
50	101
51	104
52	105
53	109
54	111
55	115
56	117
57	119
58	120
59	126
60	127
61	129
62	132
63	135
64	137

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	8
8	9
9	11
10	12
11	15
12	16
13	18
14	20
15	22
16	23
17	26
18	27
19	30
20	32
21	34
22	35
23	39
24	40
25	42
26	44
27	47
28	48
29	52
30	53
31	56
32	58
33	60
34	62
35	66
36	67
37	69
38	71
39	75
40	76
41	80
42	81
43	84
44	87
45	89
46	90
47	95
48	96
49	99
50	101
51	104
52	105
53	109
54	111
55	115
56	117
57	119
58	120
59	126
60	127
61	129
62	132
63	135
64	137

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	8
8	9
9	11
10	12
11	15
12	16
13	18
14	20
15	22
16	23
17	26
18	27
19	30
20	32
21	34
22	35
23	39
24	40
25	42
26	44
27	47
28	48
29	52
30	53
31	56
32	58
33	60
34	62
35	66
36	67
37	69
38	71
39	75
40	76
41	80
42	81
43	84
44	87
45	89
46	90
47	95
48	96
49	99
50	101
51	104
52	105
53	109
54	111
55	115
56	117
57	119
58	120
59	126
60	127
61	129
62	132
63	135
64	137