A346541 - cp's OEIS frontend

A346541 Number of walks on square lattice from (n,2n) to (0,0) using steps that decrease the Euclidean distance to the origin and increase the Euclidean distance to (n,2n) and that change each coordinate by at most 1.

n	a(n)
0	1
1	5
2	173
3	6273
4	327304
5	19662204
6	1331125733
7	97103842536
8	7486548949630
9	600824064355643
10	49716537270181030
11	4212436222856773156
12	363673201239600512658
13	31874623637580787947172
14	2828388650238276648013964
15	253555200931317108300020394
16	22925898959060646660438636660

[1, 5, 173, 6273, 327304, 19662204, 1331125733, 97103842536, 7486548949630, 600824064355643, 49716537270181030, 4212436222856773156, 363673201239600512658, 31874623637580787947172, 2828388650238276648013964, 253555200931317108300020394, 22925898959060646660438636660]

cp's OEIS Frontend

A346541 Number of walks on square lattice from (n,2n) to (0,0) using steps that decrease the Euclidean distance to the origin and increase the Euclidean distance to (n,2n) and that change each coordinate by at most 1.

Table of values

List of values