A151292 - cp's OEIS frontend

A151292 Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (-1, 0), (0, 1), (1, 1)}.

n	a(n)
0	1
1	2
2	7
3	23
4	85
5	314
6	1207
7	4682
8	18493
9	73688
10	296671
11	1202849
12	4910689
13	20158436
14	83169871
15	344628527
16	1433631973
17	5984532728
18	25060514887
19	105240685511
20	443102517025
21	1870054761632
22	7909539602647
23	33521289826778
24	142330494633985
25	605375433105734
26	2578988979186127
27	11003364185437517

[1, 2, 7, 23, 85, 314, 1207, 4682, 18493, 73688, 296671, 1202849, 4910689, 20158436, 83169871, 344628527, 1433631973, 5984532728, 25060514887, 105240685511, 443102517025, 1870054761632, 7909539602647, 33521289826778, 142330494633985, 605375433105734, 2578988979186127, 11003364185437517]

cp's OEIS Frontend

A151292 Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (-1, 0), (0, 1), (1, 1)}.

Table of values

List of values