A054068 - cp's OEIS frontend

A054068 Permutation of N = set of natural numbers: a(n)+C(k,2), where a=A054065 and k=Floor((1+sqrt(8n-3))/2).

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

[1, 3, 2, 5, 4, 6, 8, 10, 7, 9, 15, 12, 14, 11, 13, 20, 17, 19, 16, 21, 18, 26, 23, 28, 25, 22, 27, 24, 33, 30, 35, 32, 29, 34, 31, 36, 41, 38, 43, 40, 45, 37, 42, 39, 44, 50, 55, 47, 52, 49, 54, 46, 51, 48, 53, 60, 65, 57, 62, 59, 64, 56, 61]

cp's OEIS Frontend

A054068 Permutation of N = set of natural numbers: a(n)+C(k,2), where a=A054065 and k=Floor((1+sqrt(8n-3))/2).

Table of values

List of values

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

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

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