A187506 - cp's OEIS frontend

A187506 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)=0. Then a(n)=a(3r+p_i) gives the quantity of H_(9,4,0) 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	1
3	1
4	1
5	1
6	2
7	3
8	4
9	7
10	9
11	10
12	19
13	26
14	30
15	56
16	75
17	85
18	160
19	216
20	246
21	462
22	622
23	707
24	1329
25	1791
26	2037
27	3828
28	5157
29	5864
30	11021
31	14849
32	16886
33	31735
34	42756
35	48620
36	91376
37	123111
38	139997
39	263108
40	354484
41	403104
42	757588
43	1020696
44	1160693
45	2181389

[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, 2181389]

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