A163296 - cp's OEIS frontend

A163296 Absolute value of the Sum_{x=0..A141468(n)} x*(-1)^x.

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

[0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 8, 9, 10, 11, 11, 12, 13, 13, 14, 14, 15, 16, 17, 17, 18, 18, 19, 20, 20, 21, 22, 23, 23, 24, 25, 25, 26, 26, 27, 28, 28, 29, 29, 30, 31, 32, 32, 33, 33, 34, 35, 35, 36, 37, 38, 38, 39, 39, 40, 41, 41, 42, 43, 43, 44, 44, 45, 46, 46, 47, 47, 48, 48, 49, 50, 50, 51, 52, 53, 53]

cp's OEIS Frontend

A163296 Absolute value of the Sum_{x=0..A141468(n)} x*(-1)^x.

Table of values

List of values

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

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

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