A054076 - cp's OEIS frontend

A054076 Permutation of N: a(n)+C(k,2), where a=A054073 and k=Floor((1+sqrt(8n-3))/2).

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

[1, 2, 3, 6, 4, 5, 9, 7, 10, 8, 15, 13, 11, 14, 12, 20, 18, 16, 21, 19, 17, 26, 24, 22, 27, 25, 23, 28, 33, 31, 36, 29, 34, 32, 30, 35, 41, 39, 44, 37, 42, 40, 45, 38, 43, 50, 55, 48, 53, 46, 51, 49, 54, 47, 52, 60, 65, 58, 63, 56, 61, 66, 59]

cp's OEIS Frontend

A054076 Permutation of N: a(n)+C(k,2), where a=A054073 and k=Floor((1+sqrt(8n-3))/2).

Table of values

List of values

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

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

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