A151254 - cp's OEIS frontend

A151254 Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1)}.

n	a(n)
0	1
1	4
2	20
3	96
4	480
5	2368
6	11840
7	58880
8	294400
9	1468416
10	7342080
11	36667392
12	183336960
13	916144128
14	4580720640
15	22896574464
16	114482872320
17	572320645120
18	2861603225600
19	14306741583872
20	71533707919360
21	357650927714304
22	1788254638571520
23	8941026626502656
24	44705133132513280
25	223522175800311808

[1, 4, 20, 96, 480, 2368, 11840, 58880, 294400, 1468416, 7342080, 36667392, 183336960, 916144128, 4580720640, 22896574464, 114482872320, 572320645120, 2861603225600, 14306741583872, 71533707919360, 357650927714304, 1788254638571520, 8941026626502656, 44705133132513280, 223522175800311808]

cp's OEIS Frontend

A151254 Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1)}.

Table of values

List of values