A008828 - cp's OEIS frontend

A008828 Triangle read by rows: T(n,k) = number of closed meander systems of order n with k<=n components.

n	a(n)
1	1
2	2
3	2
4	8
5	12
6	5
7	42
8	84
9	56
10	14
11	262
12	640
13	580
14	240
15	42
16	1828
17	5236
18	5894
19	3344
20	990
21	132
22	13820
23	45164
24	60312
25	42840
26	17472
27	4004
28	429
29	110954
30	406012
31	624240
32	529104
33	271240
34	85904
35	16016
36	1430
37	933458
38	3772008
39	6540510
40	6413784
41	3935238
42	1569984
43	405552
44	63648
45	4862

[1, 2, 2, 8, 12, 5, 42, 84, 56, 14, 262, 640, 580, 240, 42, 1828, 5236, 5894, 3344, 990, 132, 13820, 45164, 60312, 42840, 17472, 4004, 429, 110954, 406012, 624240, 529104, 271240, 85904, 16016, 1430, 933458, 3772008, 6540510, 6413784, 3935238, 1569984, 405552, 63648, 4862]

cp's OEIS Frontend

A008828 Triangle read by rows: T(n,k) = number of closed meander systems of order n with k<=n components.

Table of values

List of values