A286443 - cp's OEIS frontend

A286443 Irregular triangle read by rows: T(n, k) = number of non-equivalent ways to tile an n X n X n triangular area with k 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-4*k) of 1 X 1 X 1 tiles.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	2
10	1
11	1
12	4
13	10
14	14
15	6
16	1
17	6
18	32
19	97
20	142
21	105
22	46
23	14
24	3
25	1
26	1
27	8
28	70
29	398
30	1280
31	2386
32	2574
33	1569
34	524
35	87
36	3
37	1
38	11
39	143
40	1290
41	7301
42	26471
43	62067
44	94423
45	93358
46	60287
47	25881
48	7697
49	1678
50	281
51	40
52	5
53	1
54	1
55	13
56	252
57	3366
58	29603
59	176591
60	728868

[1, 1, 1, 1, 1, 1, 3, 3, 2, 1, 1, 4, 10, 14, 6, 1, 6, 32, 97, 142, 105, 46, 14, 3, 1, 1, 8, 70, 398, 1280, 2386, 2574, 1569, 524, 87, 3, 1, 11, 143, 1290, 7301, 26471, 62067, 94423, 93358, 60287, 25881, 7697, 1678, 281, 40, 5, 1, 1, 13, 252, 3366, 29603, 176591, 728868]

cp's OEIS Frontend

A286443 Irregular triangle read by rows: T(n, k) = number of non-equivalent ways to tile an n X n X n triangular area with k 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-4*k) of 1 X 1 X 1 tiles.

Table of values

List of values