A224850 - cp's OEIS frontend

A224850 Number T(n,k) of tilings of an n X k rectangle using integer-sided square tiles reduced for symmetry, where the orbits under the symmetry group of the rectangle, D2, have 1 element; triangle T(n,k), k >= 1, 0 <= n < k, read by columns.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	3
10	1
11	1
12	1
13	2
14	2
15	3
16	1
17	1
18	5
19	2
20	12
21	6
22	1
23	1
24	3
25	3
26	5
27	7
28	17
29	1
30	1
31	8
32	3
33	25
34	11
35	106
36	44

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 2, 2, 3, 1, 1, 5, 2, 12, 6, 1, 1, 3, 3, 5, 7, 17, 1, 1, 8, 3, 25, 11, 106, 44]