A286439 - cp's OEIS frontend

A286439 Number of ways to tile an n X n X n triangular area with four 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-16) of 1 X 1 X 1 tiles.

n	a(n)
3	0
4	1
5	25
6	747
7	7459
8	42983
9	176373
10	575775
11	1595487
12	3908979
13	8701313
14	17936083
15	34713675
16	63739327
17	111921149
18	189119943
19	309074343
20	490526475
21	758575017
22	1146284219
23	1696579123
24	2464458903
25	3519561925
26	4949117807
27	6861323439
28	9389181603
29	12694842513
30	16974490275

[0, 1, 25, 747, 7459, 42983, 176373, 575775, 1595487, 3908979, 8701313, 17936083, 34713675, 63739327, 111921149, 189119943, 309074343, 490526475, 758575017, 1146284219, 1696579123, 2464458903, 3519561925, 4949117807, 6861323439, 9389181603, 12694842513, 16974490275]

cp's OEIS Frontend

A286439 Number of ways to tile an n X n X n triangular area with four 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-16) of 1 X 1 X 1 tiles.

Table of values

List of values