A149424 - cp's OEIS frontend

A149424 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), (0, -1, 0), (0, 0, -1), (1, 1, 1)}.

n	a(n)
0	1
1	1
2	4
3	13
4	40
5	136
6	496
7	1753
8	6256
9	22912
10	85216
11	314836
12	1170688
13	4396048
14	16623328
15	62744017
16	237680992
17	904962400
18	3459831424
19	13219219972
20	50621972224
21	194465172304
22	749061374848
23	2884682636764
24	11126422372864
25	43007603099296
26	166555051934848
27	644984620465264
28	2500560314630656

[1, 1, 4, 13, 40, 136, 496, 1753, 6256, 22912, 85216, 314836, 1170688, 4396048, 16623328, 62744017, 237680992, 904962400, 3459831424, 13219219972, 50621972224, 194465172304, 749061374848, 2884682636764, 11126422372864, 43007603099296, 166555051934848, 644984620465264, 2500560314630656]

cp's OEIS Frontend

A149424 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), (0, -1, 0), (0, 0, -1), (1, 1, 1)}.

Table of values

List of values