A130717 - cp's OEIS frontend

A130717 Second differences of A130845.

n	a(n)
0	0
1	1
2	-1
3	0
4	0
5	2
6	-3
7	1
8	0
9	3
10	-5
11	2
12	0
13	4
14	-7
15	3
16	0
17	5
18	-9
19	4
20	0
21	6
22	-11
23	5
24	0
25	7
26	-13
27	6
28	0
29	8
30	-15
31	7
32	0
33	9
34	-17
35	8
36	0
37	10
38	-19
39	9
40	0
41	11
42	-21
43	10
44	0
45	12
46	-23
47	11
48	0
49	13
50	-25
51	12
52	0
53	14
54	-27
55	13
56	0
57	15
58	-29
59	14
60	0
61	16
62	-31
63	15
64	0
65	17
66	-33
67	16
68	0
69	18
70	-35
71	17
72	0
73	19
74	-37
75	18
76	0
77	20
78	-39
79	19
80	0
81	21
82	-41
83	20

[0, 1, -1, 0, 0, 2, -3, 1, 0, 3, -5, 2, 0, 4, -7, 3, 0, 5, -9, 4, 0, 6, -11, 5, 0, 7, -13, 6, 0, 8, -15, 7, 0, 9, -17, 8, 0, 10, -19, 9, 0, 11, -21, 10, 0, 12, -23, 11, 0, 13, -25, 12, 0, 14, -27, 13, 0, 15, -29, 14, 0, 16, -31, 15, 0, 17, -33, 16, 0, 18, -35, 17, 0, 19, -37, 18, 0, 20, -39, 19, 0, 21, -41, 20]

cp's OEIS Frontend

A130717 Second differences of A130845.

Table of values

List of values

n	a(n)
0	0
1	1
2	-1
3	0
4	0
5	2
6	-3
7	1
8	0
9	3
10	-5
11	2
12	0
13	4
14	-7
15	3
16	0
17	5
18	-9
19	4
20	0
21	6
22	-11
23	5
24	0
25	7
26	-13
27	6
28	0
29	8
30	-15
31	7
32	0
33	9
34	-17
35	8
36	0
37	10
38	-19
39	9
40	0
41	11
42	-21
43	10
44	0
45	12
46	-23
47	11
48	0
49	13
50	-25
51	12
52	0
53	14
54	-27
55	13
56	0
57	15
58	-29
59	14
60	0
61	16
62	-31
63	15
64	0
65	17
66	-33
67	16
68	0
69	18
70	-35
71	17
72	0
73	19
74	-37
75	18
76	0
77	20
78	-39
79	19
80	0
81	21
82	-41
83	20

n	a(n)
0	0
1	1
2	-1
3	0
4	0
5	2
6	-3
7	1
8	0
9	3
10	-5
11	2
12	0
13	4
14	-7
15	3
16	0
17	5
18	-9
19	4
20	0
21	6
22	-11
23	5
24	0
25	7
26	-13
27	6
28	0
29	8
30	-15
31	7
32	0
33	9
34	-17
35	8
36	0
37	10
38	-19
39	9
40	0
41	11
42	-21
43	10
44	0
45	12
46	-23
47	11
48	0
49	13
50	-25
51	12
52	0
53	14
54	-27
55	13
56	0
57	15
58	-29
59	14
60	0
61	16
62	-31
63	15
64	0
65	17
66	-33
67	16
68	0
69	18
70	-35
71	17
72	0
73	19
74	-37
75	18
76	0
77	20
78	-39
79	19
80	0
81	21
82	-41
83	20

n	a(n)
0	0
1	1
2	-1
3	0
4	0
5	2
6	-3
7	1
8	0
9	3
10	-5
11	2
12	0
13	4
14	-7
15	3
16	0
17	5
18	-9
19	4
20	0
21	6
22	-11
23	5
24	0
25	7
26	-13
27	6
28	0
29	8
30	-15
31	7
32	0
33	9
34	-17
35	8
36	0
37	10
38	-19
39	9
40	0
41	11
42	-21
43	10
44	0
45	12
46	-23
47	11
48	0
49	13
50	-25
51	12
52	0
53	14
54	-27
55	13
56	0
57	15
58	-29
59	14
60	0
61	16
62	-31
63	15
64	0
65	17
66	-33
67	16
68	0
69	18
70	-35
71	17
72	0
73	19
74	-37
75	18
76	0
77	20
78	-39
79	19
80	0
81	21
82	-41
83	20