A364486 - cp's OEIS frontend

A364486 Number of fixed triangular n-ominoes of the regular tiling with Schläfli symbol {3,6} that have a common axis of symmetry coincident with cell altitudes and the point of the polyomino farthest along that axis in a specified direction is a cell vertex.

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	5
7	5
8	13
9	13
10	32
11	36
12	85
13	98
14	226
15	270
16	610
17	754
18	1674
19	2111
20	4647
21	5945
22	13008
23	16843
24	36666
25	47931
26	103887
27	136971
28	295713
29	392856
30	845153
31	1130268
32	2424156
33	3260969
34	6975700
35	9431977
36	20130758
37	27342941
38	58243283
39	79431140
40	168900755
41	231186046

[1, 1, 1, 2, 2, 5, 5, 13, 13, 32, 36, 85, 98, 226, 270, 610, 754, 1674, 2111, 4647, 5945, 13008, 16843, 36666, 47931, 103887, 136971, 295713, 392856, 845153, 1130268, 2424156, 3260969, 6975700, 9431977, 20130758, 27342941, 58243283, 79431140, 168900755, 231186046]

cp's OEIS Frontend

A364486 Number of fixed triangular n-ominoes of the regular tiling with Schläfli symbol {3,6} that have a common axis of symmetry coincident with cell altitudes and the point of the polyomino farthest along that axis in a specified direction is a cell vertex.

Table of values

List of values