A331499 - cp's OEIS frontend

A331499 T(n,k) is the number of nonintersecting arch configurations with n arches on a horizontal axis that have a starting parent arch configuration of k arches.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	4
8	3
9	2
10	5
11	10
12	6
13	7
14	5
15	14
16	24
17	18
18	15
19	19
20	14
21	42
22	66
23	42
24	48
25	43
26	56
27	42
28	132
29	174
30	130
31	116
32	143
33	132
34	174
35	132
36	429
37	504
38	332
39	374
40	358
41	451
42	423
43	561
44	429
45	1430
46	1406
47	1048
48	974
49	1182
50	1163
51	1475
52	1397
53	1859
54	1430
55	4862

[1, 1, 1, 2, 1, 2, 4, 3, 2, 5, 10, 6, 7, 5, 14, 24, 18, 15, 19, 14, 42, 66, 42, 48, 43, 56, 42, 132, 174, 130, 116, 143, 132, 174, 132, 429, 504, 332, 374, 358, 451, 423, 561, 429, 1430, 1406, 1048, 974, 1182, 1163, 1475, 1397, 1859, 1430, 4862]

cp's OEIS Frontend

A331499 T(n,k) is the number of nonintersecting arch configurations with n arches on a horizontal axis that have a starting parent arch configuration of k arches.

Table of values

List of values