A271942 - cp's OEIS frontend

A271942 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having width k (n>=2, k>=1).

n	a(n)
2	1
3	1
4	1
5	1
6	3
7	1
8	1
9	5
10	6
11	1
12	1
13	7
14	16
15	10
16	1
17	1
18	9
19	31
20	40
21	15
22	1
23	1
24	11
25	51
26	105
27	85
28	21
29	1
30	1
31	13
32	76
33	219
34	295
35	161
36	28
37	1
38	1
39	15
40	106
41	396
42	771
43	721
44	280
45	36
46	1
47	1
48	17
49	141
50	650
51	1681
52	2331
53	1582
54	456
55	45
56	1
57	1
58	19
59	181
60	995
61	3235
62	6083
63	6244
64	3186
65	705
66	55
67	1
68	1
69	21
70	226
71	1445
72	5685
73	13663
74	19348
75	15156
76	5985
77	1045
78	66
79	1
80	1
81	23
82	276
83	2014
84	9325
85	27483
86	50464
87	55308
88	33903
89	10615
90	1496
91	78
92	1

[1, 1, 1, 1, 3, 1, 1, 5, 6, 1, 1, 7, 16, 10, 1, 1, 9, 31, 40, 15, 1, 1, 11, 51, 105, 85, 21, 1, 1, 13, 76, 219, 295, 161, 28, 1, 1, 15, 106, 396, 771, 721, 280, 36, 1, 1, 17, 141, 650, 1681, 2331, 1582, 456, 45, 1, 1, 19, 181, 995, 3235, 6083, 6244, 3186, 705, 55, 1, 1, 21, 226, 1445, 5685, 13663, 19348, 15156, 5985, 1045, 66, 1, 1, 23, 276, 2014, 9325, 27483, 50464, 55308, 33903, 10615, 1496, 78, 1]

cp's OEIS Frontend

A271942 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having width k (n>=2, k>=1).

Table of values

List of values