A273350 - cp's OEIS frontend

A273350 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k up steps (n >= 2, k >= 1).

n	a(n)
2	1
3	1
4	1
5	1
6	3
7	1
8	1
9	6
10	5
11	1
12	1
13	10
14	16
15	7
16	1
17	1
18	15
19	40
20	31
21	9
22	1
23	1
24	21
25	85
26	105
27	51
28	11
29	1
30	1
31	28
32	161
33	295
34	219
35	76
36	13
37	1
38	1
39	36
40	280
41	721
42	771
43	396
44	106
45	15
46	1
47	1
48	45
49	456
50	1582
51	2331
52	1681
53	650
54	141
55	17
56	1
57	1
58	55
59	705
60	3186
61	6244
62	6083
63	3235
64	995
65	181
66	19
67	1

[1, 1, 1, 1, 3, 1, 1, 6, 5, 1, 1, 10, 16, 7, 1, 1, 15, 40, 31, 9, 1, 1, 21, 85, 105, 51, 11, 1, 1, 28, 161, 295, 219, 76, 13, 1, 1, 36, 280, 721, 771, 396, 106, 15, 1, 1, 45, 456, 1582, 2331, 1681, 650, 141, 17, 1, 1, 55, 705, 3186, 6244, 6083, 3235, 995, 181, 19, 1]

cp's OEIS Frontend

A273350 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k up steps (n >= 2, k >= 1).

Table of values

List of values