A290125 - cp's OEIS frontend

A290125 Square array read by antidiagonals T(n,k) = sigma(k + n) - sigma(k) - n, with n>=0 and k>=1.

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

[0, 0, 1, 0, 0, 1, 0, 2, 2, 3, 0, -2, 0, 0, 1, 0, 5, 3, 5, 5, 6, 0, -5, 0, -2, 0, 0, 1, 0, 6, 1, 6, 4, 6, 6, 7, 0, -3, 3, -2, 3, 1, 3, 3, 4, 0, 4, 1, 7, 2, 7, 5, 7, 7, 8, 0, -7, -3, -6, 0, -5, 0, -2, 0, 0, 1, 0, 15, 8, 12, 9, 15, 10, 15, 13, 15, 15, 16]

cp's OEIS Frontend

A290125 Square array read by antidiagonals T(n,k) = sigma(k + n) - sigma(k) - n, with n>=0 and k>=1.

Table of values

List of values

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

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

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