A329854 - cp's OEIS frontend

A329854 Triangle read by rows: T(n,k) = ((n - k)*(n + k - 1) + 2)/2, 0 <= k <= n.

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

[1, 1, 1, 2, 2, 1, 4, 4, 3, 1, 7, 7, 6, 4, 1, 11, 11, 10, 8, 5, 1, 16, 16, 15, 13, 10, 6, 1, 22, 22, 21, 19, 16, 12, 7, 1, 29, 29, 28, 26, 23, 19, 14, 8, 1, 37, 37, 36, 34, 31, 27, 22, 16, 9, 1, 46, 46, 45, 43, 40, 36, 31, 25, 18, 10, 1, 56, 56, 55, 53, 50, 46, 41, 35, 28, 20, 11, 1]

cp's OEIS Frontend

A329854 Triangle read by rows: T(n,k) = ((n - k)*(n + k - 1) + 2)/2, 0 <= k <= n.

Table of values

List of values

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

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

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