A276901 - cp's OEIS frontend

A276901 Number of positive walks with n steps {-3,-2,-1,1,2,3} starting at the origin, ending at altitude 2, and staying strictly above the x-axis.

n	a(n)
0	0
1	1
2	2
3	9
4	34
5	159
6	730
7	3579
8	17762
9	90538
10	467796
11	2452727
12	12997554
13	69549847
14	375159290
15	2038068813
16	11140256754
17	61227097438
18	338140106124
19	1875581756078
20	10444142352812
21	58364192607047
22	327203347219250
23	1839778650617309
24	10372512509521074

[0, 1, 2, 9, 34, 159, 730, 3579, 17762, 90538, 467796, 2452727, 12997554, 69549847, 375159290, 2038068813, 11140256754, 61227097438, 338140106124, 1875581756078, 10444142352812, 58364192607047, 327203347219250, 1839778650617309, 10372512509521074]

cp's OEIS Frontend

A276901 Number of positive walks with n steps {-3,-2,-1,1,2,3} starting at the origin, ending at altitude 2, and staying strictly above the x-axis.

Table of values

List of values