A380368 - cp's OEIS frontend

A380368 Triangle read by rows: T(n,k) is the number of closed forest meander systems with 2n crossings and k components.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	1
6	0
7	8
8	6
9	1
10	0
11	42
12	42
13	12
14	1
15	0
16	262
17	320
18	130
19	20
20	1
21	0
22	1828
23	2618
24	1360
25	310
26	30
27	1
28	0
29	13820
30	22582
31	14196
32	4270
33	630
34	42
35	1
36	0
37	110954
38	203006
39	149024
40	55524
41	11060
42	1148
43	56
44	1
45	0
46	933458
47	1886004
48	1577712
49	698952
50	175560
51	25032
52	1932
53	72
54	1

[1, 0, 1, 0, 2, 1, 0, 8, 6, 1, 0, 42, 42, 12, 1, 0, 262, 320, 130, 20, 1, 0, 1828, 2618, 1360, 310, 30, 1, 0, 13820, 22582, 14196, 4270, 630, 42, 1, 0, 110954, 203006, 149024, 55524, 11060, 1148, 56, 1, 0, 933458, 1886004, 1577712, 698952, 175560, 25032, 1932, 72, 1]

cp's OEIS Frontend

A380368 Triangle read by rows: T(n,k) is the number of closed forest meander systems with 2n crossings and k components.

Table of values

List of values