A274207 - cp's OEIS frontend

A274207 Number T(n,k) of bargraphs of site-perimeter n having area k; triangle T(n,k), n>=4, floor((n-1)/2)<=k<=floor(((n-1)^2+3)/12), read by rows.

n	a(n)
4	1
5	2
6	2
7	2
8	2
9	4
10	4
11	2
12	4
13	7
14	1
15	6
16	6
17	10
18	4
19	2
20	9
21	13
22	14
23	12
24	2
25	8
26	13
27	22
28	18
29	24
30	10
31	2
32	2
33	15
34	27
35	40
36	29
37	38
38	28
39	12
40	2
41	10
42	24
43	45
44	65
45	59
46	58
47	56
48	40
49	16
50	4
51	2
52	23
53	52
54	84
55	104
56	112
57	100
58	95
59	88
60	56
61	28
62	7
63	1
64	12
65	40
66	92
67	148
68	181
69	205
70	191
71	172
72	163
73	132
74	96
75	48
76	16
77	4

[1, 2, 2, 2, 2, 4, 4, 2, 4, 7, 1, 6, 6, 10, 4, 2, 9, 13, 14, 12, 2, 8, 13, 22, 18, 24, 10, 2, 2, 15, 27, 40, 29, 38, 28, 12, 2, 10, 24, 45, 65, 59, 58, 56, 40, 16, 4, 2, 23, 52, 84, 104, 112, 100, 95, 88, 56, 28, 7, 1, 12, 40, 92, 148, 181, 205, 191, 172, 163, 132, 96, 48, 16, 4]

cp's OEIS Frontend

A274207 Number T(n,k) of bargraphs of site-perimeter n having area k; triangle T(n,k), n>=4, floor((n-1)/2)<=k<=floor(((n-1)^2+3)/12), read by rows.

Table of values

List of values

n	a(n)
4	1
5	2
6	2
7	2
8	2
9	4
10	4
11	2
12	4
13	7
14	1
15	6
16	6
17	10
18	4
19	2
20	9
21	13
22	14
23	12
24	2
25	8
26	13
27	22
28	18
29	24
30	10
31	2
32	2
33	15
34	27
35	40
36	29
37	38
38	28
39	12
40	2
41	10
42	24
43	45
44	65
45	59
46	58
47	56
48	40
49	16
50	4
51	2
52	23
53	52
54	84
55	104
56	112
57	100
58	95
59	88
60	56
61	28
62	7
63	1
64	12
65	40
66	92
67	148
68	181
69	205
70	191
71	172
72	163
73	132
74	96
75	48
76	16
77	4

n	a(n)
4	1
5	2
6	2
7	2
8	2
9	4
10	4
11	2
12	4
13	7
14	1
15	6
16	6
17	10
18	4
19	2
20	9
21	13
22	14
23	12
24	2
25	8
26	13
27	22
28	18
29	24
30	10
31	2
32	2
33	15
34	27
35	40
36	29
37	38
38	28
39	12
40	2
41	10
42	24
43	45
44	65
45	59
46	58
47	56
48	40
49	16
50	4
51	2
52	23
53	52
54	84
55	104
56	112
57	100
58	95
59	88
60	56
61	28
62	7
63	1
64	12
65	40
66	92
67	148
68	181
69	205
70	191
71	172
72	163
73	132
74	96
75	48
76	16
77	4

n	a(n)
4	1
5	2
6	2
7	2
8	2
9	4
10	4
11	2
12	4
13	7
14	1
15	6
16	6
17	10
18	4
19	2
20	9
21	13
22	14
23	12
24	2
25	8
26	13
27	22
28	18
29	24
30	10
31	2
32	2
33	15
34	27
35	40
36	29
37	38
38	28
39	12
40	2
41	10
42	24
43	45
44	65
45	59
46	58
47	56
48	40
49	16
50	4
51	2
52	23
53	52
54	84
55	104
56	112
57	100
58	95
59	88
60	56
61	28
62	7
63	1
64	12
65	40
66	92
67	148
68	181
69	205
70	191
71	172
72	163
73	132
74	96
75	48
76	16
77	4