A276852 - cp's OEIS frontend

A276852 Number of positive walks with n steps {-3,-2,-1,1,2,3} starting at the origin, ending at altitude 1, and staying strictly above the x-axis.

n	a(n)
0	0
1	1
2	2
3	7
4	28
5	121
6	560
7	2677
8	13230
9	66742
10	343092
11	1788681
12	9439870
13	50321865
14	270594896
15	1465941763
16	7993664588
17	43839212778
18	241650560756
19	1338084935826
20	7439615051328
21	41516113036777
22	232452845782308
23	1305500166481715
24	7352433083806020
25	41514430735834714

[0, 1, 2, 7, 28, 121, 560, 2677, 13230, 66742, 343092, 1788681, 9439870, 50321865, 270594896, 1465941763, 7993664588, 43839212778, 241650560756, 1338084935826, 7439615051328, 41516113036777, 232452845782308, 1305500166481715, 7352433083806020, 41514430735834714]

cp's OEIS Frontend

A276852 Number of positive walks with n steps {-3,-2,-1,1,2,3} starting at the origin, ending at altitude 1, and staying strictly above the x-axis.

Table of values

List of values