A335663 - cp's OEIS frontend

A335663 For n >= 1, a(n) = f(n) where f is a bijection on Z such that f(x)-x is also a bijection on Z and f(f(x)) = x.

n	a(n)
1	2
2	1
3	6
4	9
5	12
6	3
7	16
8	19
9	4
10	23
11	26
12	5
13	30
14	33
15	36
16	7
17	40
18	43
19	8
20	47
21	50
22	53
23	10
24	57
25	60
26	11
27	64
28	67
29	70
30	13
31	74
32	77
33	14
34	81
35	84
36	15
37	88
38	91
39	94
40	17
41	98
42	101
43	18
44	105
45	108
46	111
47	20
48	115
49	118
50	21
51	122
52	125
53	22
54	129
55	132
56	135
57	24
58	139
59	142
60	25
61	146
62	149
63	152

[2, 1, 6, 9, 12, 3, 16, 19, 4, 23, 26, 5, 30, 33, 36, 7, 40, 43, 8, 47, 50, 53, 10, 57, 60, 11, 64, 67, 70, 13, 74, 77, 14, 81, 84, 15, 88, 91, 94, 17, 98, 101, 18, 105, 108, 111, 20, 115, 118, 21, 122, 125, 22, 129, 132, 135, 24, 139, 142, 25, 146, 149, 152]

cp's OEIS Frontend

A335663 For n >= 1, a(n) = f(n) where f is a bijection on Z such that f(x)-x is also a bijection on Z and f(f(x)) = x.

Table of values

List of values

n	a(n)
1	2
2	1
3	6
4	9
5	12
6	3
7	16
8	19
9	4
10	23
11	26
12	5
13	30
14	33
15	36
16	7
17	40
18	43
19	8
20	47
21	50
22	53
23	10
24	57
25	60
26	11
27	64
28	67
29	70
30	13
31	74
32	77
33	14
34	81
35	84
36	15
37	88
38	91
39	94
40	17
41	98
42	101
43	18
44	105
45	108
46	111
47	20
48	115
49	118
50	21
51	122
52	125
53	22
54	129
55	132
56	135
57	24
58	139
59	142
60	25
61	146
62	149
63	152

n	a(n)
1	2
2	1
3	6
4	9
5	12
6	3
7	16
8	19
9	4
10	23
11	26
12	5
13	30
14	33
15	36
16	7
17	40
18	43
19	8
20	47
21	50
22	53
23	10
24	57
25	60
26	11
27	64
28	67
29	70
30	13
31	74
32	77
33	14
34	81
35	84
36	15
37	88
38	91
39	94
40	17
41	98
42	101
43	18
44	105
45	108
46	111
47	20
48	115
49	118
50	21
51	122
52	125
53	22
54	129
55	132
56	135
57	24
58	139
59	142
60	25
61	146
62	149
63	152

n	a(n)
1	2
2	1
3	6
4	9
5	12
6	3
7	16
8	19
9	4
10	23
11	26
12	5
13	30
14	33
15	36
16	7
17	40
18	43
19	8
20	47
21	50
22	53
23	10
24	57
25	60
26	11
27	64
28	67
29	70
30	13
31	74
32	77
33	14
34	81
35	84
36	15
37	88
38	91
39	94
40	17
41	98
42	101
43	18
44	105
45	108
46	111
47	20
48	115
49	118
50	21
51	122
52	125
53	22
54	129
55	132
56	135
57	24
58	139
59	142
60	25
61	146
62	149
63	152