A174239 - cp's OEIS frontend

A174239 a(n) = (3n + 1 + (-1)^n(n+3))/4.

n	a(n)
0	1
1	0
2	3
3	1
4	5
5	2
6	7
7	3
8	9
9	4
10	11
11	5
12	13
13	6
14	15
15	7
16	17
17	8
18	19
19	9
20	21
21	10
22	23
23	11
24	25
25	12
26	27
27	13
28	29
29	14
30	31
31	15
32	33
33	16
34	35
35	17
36	37
37	18
38	39
39	19
40	41
41	20
42	43
43	21
44	45
45	22
46	47
47	23
48	49
49	24
50	51
51	25
52	53
53	26
54	55
55	27
56	57
57	28
58	59
59	29
60	61
61	30
62	63
63	31
64	65
65	32
66	67
67	33
68	69
69	34
70	71
71	35
72	73
73	36
74	75
75	37
76	77
77	38
78	79
79	39
80	81

[1, 0, 3, 1, 5, 2, 7, 3, 9, 4, 11, 5, 13, 6, 15, 7, 17, 8, 19, 9, 21, 10, 23, 11, 25, 12, 27, 13, 29, 14, 31, 15, 33, 16, 35, 17, 37, 18, 39, 19, 41, 20, 43, 21, 45, 22, 47, 23, 49, 24, 51, 25, 53, 26, 55, 27, 57, 28, 59, 29, 61, 30, 63, 31, 65, 32, 67, 33, 69, 34, 71, 35, 73, 36, 75, 37, 77, 38, 79, 39, 81]

cp's OEIS Frontend

A174239 a(n) = (3n + 1 + (-1)^n(n+3))/4.

Table of values

List of values

n	a(n)
0	1
1	0
2	3
3	1
4	5
5	2
6	7
7	3
8	9
9	4
10	11
11	5
12	13
13	6
14	15
15	7
16	17
17	8
18	19
19	9
20	21
21	10
22	23
23	11
24	25
25	12
26	27
27	13
28	29
29	14
30	31
31	15
32	33
33	16
34	35
35	17
36	37
37	18
38	39
39	19
40	41
41	20
42	43
43	21
44	45
45	22
46	47
47	23
48	49
49	24
50	51
51	25
52	53
53	26
54	55
55	27
56	57
57	28
58	59
59	29
60	61
61	30
62	63
63	31
64	65
65	32
66	67
67	33
68	69
69	34
70	71
71	35
72	73
73	36
74	75
75	37
76	77
77	38
78	79
79	39
80	81

n	a(n)
0	1
1	0
2	3
3	1
4	5
5	2
6	7
7	3
8	9
9	4
10	11
11	5
12	13
13	6
14	15
15	7
16	17
17	8
18	19
19	9
20	21
21	10
22	23
23	11
24	25
25	12
26	27
27	13
28	29
29	14
30	31
31	15
32	33
33	16
34	35
35	17
36	37
37	18
38	39
39	19
40	41
41	20
42	43
43	21
44	45
45	22
46	47
47	23
48	49
49	24
50	51
51	25
52	53
53	26
54	55
55	27
56	57
57	28
58	59
59	29
60	61
61	30
62	63
63	31
64	65
65	32
66	67
67	33
68	69
69	34
70	71
71	35
72	73
73	36
74	75
75	37
76	77
77	38
78	79
79	39
80	81

cp's OEIS Frontend

A174239 a(n) = (3*n + 1 + (-1)^n*(n+3))/4.

Table of values

List of values

A174239 a(n) = (3n + 1 + (-1)^n(n+3))/4.

n	a(n)
0	1
1	0
2	3
3	1
4	5
5	2
6	7
7	3
8	9
9	4
10	11
11	5
12	13
13	6
14	15
15	7
16	17
17	8
18	19
19	9
20	21
21	10
22	23
23	11
24	25
25	12
26	27
27	13
28	29
29	14
30	31
31	15
32	33
33	16
34	35
35	17
36	37
37	18
38	39
39	19
40	41
41	20
42	43
43	21
44	45
45	22
46	47
47	23
48	49
49	24
50	51
51	25
52	53
53	26
54	55
55	27
56	57
57	28
58	59
59	29
60	61
61	30
62	63
63	31
64	65
65	32
66	67
67	33
68	69
69	34
70	71
71	35
72	73
73	36
74	75
75	37
76	77
77	38
78	79
79	39
80	81