A368516 - cp's OEIS frontend

A368516 Irregular 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	2
2	6
3	4
4	2
5	10
6	12
7	8
8	4
9	2
10	14
11	20
12	20
13	12
14	8
15	4
16	2
17	18
18	28
19	32
20	28
21	18
22	12
23	8
24	4
25	2
26	22
27	36
28	44
29	44
30	38
31	24
32	18
33	12
34	8
35	4
36	2
37	26
38	44
39	56
40	60
41	58
42	48
43	32
44	24
45	18
46	12
47	8
48	4
49	2
50	30
51	52
52	68
53	76
54	78
55	72
56	60
57	40
58	32
59	24
60	18
61	12
62	8
63	4
64	2
65	34
66	60
67	80
68	92
69	98
70	96

[2, 6, 4, 2, 10, 12, 8, 4, 2, 14, 20, 20, 12, 8, 4, 2, 18, 28, 32, 28, 18, 12, 8, 4, 2, 22, 36, 44, 44, 38, 24, 18, 12, 8, 4, 2, 26, 44, 56, 60, 58, 48, 32, 24, 18, 12, 8, 4, 2, 30, 52, 68, 76, 78, 72, 60, 40, 32, 24, 18, 12, 8, 4, 2, 34, 60, 80, 92, 98, 96]

cp's OEIS Frontend

A368516 Irregular 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	2
2	6
3	4
4	2
5	10
6	12
7	8
8	4
9	2
10	14
11	20
12	20
13	12
14	8
15	4
16	2
17	18
18	28
19	32
20	28
21	18
22	12
23	8
24	4
25	2
26	22
27	36
28	44
29	44
30	38
31	24
32	18
33	12
34	8
35	4
36	2
37	26
38	44
39	56
40	60
41	58
42	48
43	32
44	24
45	18
46	12
47	8
48	4
49	2
50	30
51	52
52	68
53	76
54	78
55	72
56	60
57	40
58	32
59	24
60	18
61	12
62	8
63	4
64	2
65	34
66	60
67	80
68	92
69	98
70	96

n	a(n)
1	2
2	6
3	4
4	2
5	10
6	12
7	8
8	4
9	2
10	14
11	20
12	20
13	12
14	8
15	4
16	2
17	18
18	28
19	32
20	28
21	18
22	12
23	8
24	4
25	2
26	22
27	36
28	44
29	44
30	38
31	24
32	18
33	12
34	8
35	4
36	2
37	26
38	44
39	56
40	60
41	58
42	48
43	32
44	24
45	18
46	12
47	8
48	4
49	2
50	30
51	52
52	68
53	76
54	78
55	72
56	60
57	40
58	32
59	24
60	18
61	12
62	8
63	4
64	2
65	34
66	60
67	80
68	92
69	98
70	96

n	a(n)
1	2
2	6
3	4
4	2
5	10
6	12
7	8
8	4
9	2
10	14
11	20
12	20
13	12
14	8
15	4
16	2
17	18
18	28
19	32
20	28
21	18
22	12
23	8
24	4
25	2
26	22
27	36
28	44
29	44
30	38
31	24
32	18
33	12
34	8
35	4
36	2
37	26
38	44
39	56
40	60
41	58
42	48
43	32
44	24
45	18
46	12
47	8
48	4
49	2
50	30
51	52
52	68
53	76
54	78
55	72
56	60
57	40
58	32
59	24
60	18
61	12
62	8
63	4
64	2
65	34
66	60
67	80
68	92
69	98
70	96