A049765 - cp's OEIS frontend

A049765 Triangular array T, read by rows: T(n,k) = (k mod n) + (n mod k), for k = 1..n and n >= 1.

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

[0, 1, 0, 1, 3, 0, 1, 2, 4, 0, 1, 3, 5, 5, 0, 1, 2, 3, 6, 6, 0, 1, 3, 4, 7, 7, 7, 0, 1, 2, 5, 4, 8, 8, 8, 0, 1, 3, 3, 5, 9, 9, 9, 9, 0, 1, 2, 4, 6, 5, 10, 10, 10, 10, 0, 1, 3, 5, 7, 6, 11, 11, 11, 11, 11, 0, 1, 2, 3, 4, 7, 6, 12, 12, 12, 12, 12, 0]

cp's OEIS Frontend

A049765 Triangular array T, read by rows: T(n,k) = (k mod n) + (n mod k), for k = 1..n and n >= 1.

Table of values

List of values

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

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

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