A368604 - cp's OEIS frontend

A368604 Triangular array T, read by rows: T(n,k) = number of sums |x-y|+|y-z| = k, where x,y,z are in {1,2,...,n} and x < y and y > z.

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

[0, 1, 0, 2, 2, 1, 3, 4, 4, 2, 4, 6, 7, 6, 4, 5, 8, 10, 10, 9, 6, 6, 10, 13, 14, 14, 12, 9, 7, 12, 16, 18, 19, 18, 16, 12, 8, 14, 19, 22, 24, 24, 23, 20, 16, 9, 16, 22, 26, 29, 30, 30, 28, 25, 20, 10, 18, 25, 30, 34, 36, 37, 36, 34, 30, 25, 11, 20, 28, 34, 39]

cp's OEIS Frontend

A368604 Triangular array T, read by rows: T(n,k) = number of sums |x-y|+|y-z| = k, where x,y,z are in {1,2,...,n} and x < y and y > z.

Table of values

List of values

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

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

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