A129400 - cp's OEIS frontend

A129400 Number of walks of length n on one 60-degree wedge of the equilateral triangular lattice. The walk can go along the walls of the wedge, but cannot cross the walls.

n	a(n)
0	1
1	2
2	8
3	32
4	144
5	672
6	3264
7	16256
8	82688
9	427520
10	2240512
11	11874304
12	63533056
13	342712320
14	1861779456
15	10176823296
16	55932813312
17	308907737088
18	1713473323008
19	9541666209792
20	53322206674944
21	298943898451968

[1, 2, 8, 32, 144, 672, 3264, 16256, 82688, 427520, 2240512, 11874304, 63533056, 342712320, 1861779456, 10176823296, 55932813312, 308907737088, 1713473323008, 9541666209792, 53322206674944, 298943898451968]

cp's OEIS Frontend

A129400 Number of walks of length n on one 60-degree wedge of the equilateral triangular lattice. The walk can go along the walls of the wedge, but cannot cross the walls.

Table of values

List of values