A187503 - cp's OEIS frontend

A187503 Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p_1, p_2, p_3, p_4} = {-1,0,1,2}, n=3r+p_i, and define a(-1)=1. Then a(n)=a(3r+p_i) gives the quantity of H_(9,1,0) tiles in a subdivided H_(9,i,r) tile after linear scaling by the factor Q^r, where Q=sqrt(x^3-2x) with x=2cos(Pi/9).

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	1
6	1
7	1
8	1
9	2
10	3
11	4
12	7
13	9
14	10
15	19
16	26
17	30
18	56
19	75
20	85
21	160
22	216
23	246
24	462
25	622
26	707
27	1329
28	1791
29	2037
30	3828
31	5157
32	5864
33	11021
34	14849
35	16886
36	31735
37	42756
38	48620
39	91376
40	123111
41	139997
42	263108
43	354484
44	403104
45	757588
46	1020696
47	1160693

[0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 3, 4, 7, 9, 10, 19, 26, 30, 56, 75, 85, 160, 216, 246, 462, 622, 707, 1329, 1791, 2037, 3828, 5157, 5864, 11021, 14849, 16886, 31735, 42756, 48620, 91376, 123111, 139997, 263108, 354484, 403104, 757588, 1020696, 1160693]

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