A282698 - cp's OEIS frontend

A282698 Irregular triangle read by rows: row n gives numbers of maximal chains of lengths n-1, n, n+1, ... in the Tamari lattice T_n.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	4
7	2
8	2
9	1
10	10
11	22
12	22
13	18
14	13
15	12
16	1
17	20
18	112
19	232
20	382
21	348
22	456
23	390
24	420
25	334
26	286
27	1
28	35
29	392
30	1744
31	4474
32	8435
33	12732
34	17337
35	21158
36	27853
37	33940
38	41230
39	45048
40	50752
41	41826
42	33592
43	1
44	56
45	1092
46	9220
47	40414
48	123704
49	276324
50	550932
51	917884

[1, 1, 1, 1, 1, 4, 2, 2, 1, 10, 22, 22, 18, 13, 12, 1, 20, 112, 232, 382, 348, 456, 390, 420, 334, 286, 1, 35, 392, 1744, 4474, 8435, 12732, 17337, 21158, 27853, 33940, 41230, 45048, 50752, 41826, 33592, 1, 56, 1092, 9220, 40414, 123704, 276324, 550932, 917884]

cp's OEIS Frontend

A282698 Irregular triangle read by rows: row n gives numbers of maximal chains of lengths n-1, n, n+1, ... in the Tamari lattice T_n.

Table of values

List of values