A187505 - cp's OEIS frontend

A187505 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_(9,3,0) 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	1
2	0
3	1
4	1
5	1
6	2
7	3
8	3
9	6
10	8
11	9
12	17
13	23
14	26
15	49
16	66
17	75
18	141
19	190
20	216
21	406
22	547
23	622
24	1169
25	1575
26	1791
27	3366
28	4535
29	5157
30	9692
31	13058
32	14849
33	27907
34	37599
35	42756
36	80355
37	108262
38	123111
39	231373
40	311728
41	354484
42	666212
43	897585
44	1020696

[0, 1, 0, 1, 1, 1, 2, 3, 3, 6, 8, 9, 17, 23, 26, 49, 66, 75, 141, 190, 216, 406, 547, 622, 1169, 1575, 1791, 3366, 4535, 5157, 9692, 13058, 14849, 27907, 37599, 42756, 80355, 108262, 123111, 231373, 311728, 354484, 666212, 897585, 1020696]

cp's OEIS Frontend

Table of values

List of values