A214457 - cp's OEIS frontend

A214457 Table read by antidiagonals in which entry T(n,k) in row n and column k gives the number of possible rhombus tilings of an octagon with interior angles of 135 degrees and sequences of side lengths {n, k, 1, 1, n, k, 1, 1} (as the octagon is traversed), n,k in {1,2,3,...}.

n	a(n)
1	8
2	20
3	20
4	40
5	75
6	40
7	70
8	210
9	210
10	70
11	112
12	490
13	784
14	490
15	112
16	168
17	1008
18	2352
19	2352
20	1008
21	168
22	240
23	1890
24	6048
25	8820
26	6048
27	1890
28	240
29	330
30	3300
31	13860
32	27720
33	27720
34	13860
35	3300
36	330
37	440
38	5445
39	29040
40	76230
41	104544
42	76230
43	29040
44	5445
45	440

[8, 20, 20, 40, 75, 40, 70, 210, 210, 70, 112, 490, 784, 490, 112, 168, 1008, 2352, 2352, 1008, 168, 240, 1890, 6048, 8820, 6048, 1890, 240, 330, 3300, 13860, 27720, 27720, 13860, 3300, 330, 440, 5445, 29040, 76230, 104544, 76230, 29040, 5445, 440]

cp's OEIS Frontend

A214457 Table read by antidiagonals in which entry T(n,k) in row n and column k gives the number of possible rhombus tilings of an octagon with interior angles of 135 degrees and sequences of side lengths {n, k, 1, 1, n, k, 1, 1} (as the octagon is traversed), n,k in {1,2,3,...}.

Table of values

List of values