A364485 - cp's OEIS frontend

A364485 Number of fixed triangular polyominoes with 2n cells of the regular tiling with Schläfli symbol {3,6} that have a common axis of symmetry coincident with cell edges.

n	a(n)
1	1
2	2
3	4
4	9
5	23
6	59
7	155
8	418
9	1136
10	3122
11	8663
12	24201
13	68059
14	192471
15	546899
16	1560511
17	4469000
18	12839642
19	36995629
20	106875531
21	309477998
22	898075778
23	2611239508
24	7606064348
25	22191694916
26	64845964156
27	189752911736
28	555985221037
29	1631053277370
30	4790356866561

[1, 2, 4, 9, 23, 59, 155, 418, 1136, 3122, 8663, 24201, 68059, 192471, 546899, 1560511, 4469000, 12839642, 36995629, 106875531, 309477998, 898075778, 2611239508, 7606064348, 22191694916, 64845964156, 189752911736, 555985221037, 1631053277370, 4790356866561]

cp's OEIS Frontend

A364485 Number of fixed triangular polyominoes with 2n cells of the regular tiling with Schläfli symbol {3,6} that have a common axis of symmetry coincident with cell edges.

Table of values

List of values