A375504 - cp's OEIS frontend

A375504 Triangle read by rows: T(n,k) is the number of crystallized linear chord diagrams on n chords with k short chords.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	6
7	12
8	6
9	1
10	24
11	62
12	39
13	10
14	1
15	120
16	396
17	296
18	95
19	15
20	1
21	720
22	3024
23	2616
24	980
25	195
26	21
27	1
28	5040
29	26928
30	26568
31	11240
32	2605
33	357
34	28
35	1
36	40320
37	274320
38	305892
39	143464
40	37290
41	5971
42	602
43	36
44	1
45	362880
46	3149280
47	3945024
48	2027460
49	578514
50	103824
51	12292
52	954
53	45
54	1

[1, 1, 1, 2, 3, 1, 6, 12, 6, 1, 24, 62, 39, 10, 1, 120, 396, 296, 95, 15, 1, 720, 3024, 2616, 980, 195, 21, 1, 5040, 26928, 26568, 11240, 2605, 357, 28, 1, 40320, 274320, 305892, 143464, 37290, 5971, 602, 36, 1, 362880, 3149280, 3945024, 2027460, 578514, 103824, 12292, 954, 45, 1]

cp's OEIS Frontend

A375504 Triangle read by rows: T(n,k) is the number of crystallized linear chord diagrams on n chords with k short chords.

Table of values

List of values