A368435 - cp's OEIS frontend

A368435 Irregular triangular array T, read by rows: T(n,k) = number of sums |x-y|+|y-z| = 2n-2-k, where x,y,z are in {0,1,...,n}.

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

[1, 2, 4, 2, 2, 4, 10, 8, 3, 2, 4, 8, 16, 18, 12, 4, 2, 4, 8, 12, 24, 28, 26, 16, 5, 2, 4, 8, 12, 18, 32, 40, 40, 34, 20, 6, 2, 4, 8, 12, 18, 24, 42, 52, 56, 52, 42, 24, 7, 2, 4, 8, 12, 18, 24, 32, 52, 66, 72, 72, 64, 50, 28, 8, 2, 4, 8, 12, 18, 24, 32, 40]

cp's OEIS Frontend

A368435 Irregular triangular array T, read by rows: T(n,k) = number of sums |x-y|+|y-z| = 2n-2-k, where x,y,z are in {0,1,...,n}.

Table of values

List of values

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

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

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