A288852 - cp's OEIS frontend

A288852 Number T(n,k) of matchings of size k in the n X n X n triangular grid; triangle T(n,k), n>=0, 0<=k<=floor(n*(n+1)/4), read by rows.

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	9
6	15
7	2
8	1
9	18
10	99
11	193
12	108
13	6
14	1
15	30
16	333
17	1734
18	4416
19	5193
20	2331
21	240
22	1
23	45
24	825
25	8027
26	45261
27	151707
28	298357
29	327237
30	180234
31	40464
32	2238
33	1
34	63
35	1710
36	26335
37	255123
38	1629474
39	6995539
40	20211423
41	38743020
42	47768064
43	35913207
44	15071019

[1, 1, 1, 3, 1, 9, 15, 2, 1, 18, 99, 193, 108, 6, 1, 30, 333, 1734, 4416, 5193, 2331, 240, 1, 45, 825, 8027, 45261, 151707, 298357, 327237, 180234, 40464, 2238, 1, 63, 1710, 26335, 255123, 1629474, 6995539, 20211423, 38743020, 47768064, 35913207, 15071019]

cp's OEIS Frontend

A288852 Number T(n,k) of matchings of size k in the n X n X n triangular grid; triangle T(n,k), n>=0, 0<=k<=floor(n*(n+1)/4), read by rows.

Table of values

List of values