A183867 - cp's OEIS frontend

A183867 a(n) = n + floor(2*sqrt(n)); complement of A184676.

n	a(n)
1	3
2	4
3	6
4	8
5	9
6	10
7	12
8	13
9	15
10	16
11	17
12	18
13	20
14	21
15	22
16	24
17	25
18	26
19	27
20	28
21	30
22	31
23	32
24	33
25	35
26	36
27	37
28	38
29	39
30	40
31	42
32	43
33	44
34	45
35	46
36	48
37	49
38	50
39	51
40	52
41	53
42	54
43	56
44	57
45	58
46	59
47	60
48	61
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	70
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	80
65	81
66	82
67	83

[3, 4, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 80, 81, 82, 83]

cp's OEIS Frontend

A183867 a(n) = n + floor(2*sqrt(n)); complement of A184676.

Table of values

List of values

n	a(n)
1	3
2	4
3	6
4	8
5	9
6	10
7	12
8	13
9	15
10	16
11	17
12	18
13	20
14	21
15	22
16	24
17	25
18	26
19	27
20	28
21	30
22	31
23	32
24	33
25	35
26	36
27	37
28	38
29	39
30	40
31	42
32	43
33	44
34	45
35	46
36	48
37	49
38	50
39	51
40	52
41	53
42	54
43	56
44	57
45	58
46	59
47	60
48	61
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	70
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	80
65	81
66	82
67	83

n	a(n)
1	3
2	4
3	6
4	8
5	9
6	10
7	12
8	13
9	15
10	16
11	17
12	18
13	20
14	21
15	22
16	24
17	25
18	26
19	27
20	28
21	30
22	31
23	32
24	33
25	35
26	36
27	37
28	38
29	39
30	40
31	42
32	43
33	44
34	45
35	46
36	48
37	49
38	50
39	51
40	52
41	53
42	54
43	56
44	57
45	58
46	59
47	60
48	61
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	70
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	80
65	81
66	82
67	83

n	a(n)
1	3
2	4
3	6
4	8
5	9
6	10
7	12
8	13
9	15
10	16
11	17
12	18
13	20
14	21
15	22
16	24
17	25
18	26
19	27
20	28
21	30
22	31
23	32
24	33
25	35
26	36
27	37
28	38
29	39
30	40
31	42
32	43
33	44
34	45
35	46
36	48
37	49
38	50
39	51
40	52
41	53
42	54
43	56
44	57
45	58
46	59
47	60
48	61
49	63
50	64
51	65
52	66
53	67
54	68
55	69
56	70
57	72
58	73
59	74
60	75
61	76
62	77
63	78
64	80
65	81
66	82
67	83