A110099 - cp's OEIS frontend

A110099 Number of return steps to the line y = x from the line y = x+1 (i.e., E steps from the line y = x+1 to the line y = x) in all Delannoy paths of length n.

n	a(n)
0	0
1	1
2	8
3	53
4	332
5	2029
6	12236
7	73193
8	435480
9	2581273
10	15258256
11	90005981
12	530071076
13	3117718213
14	18318316948
15	107537570513
16	630844709168
17	3698457841201
18	21671720364056
19	126932183197061
20	743158103135484

[0, 1, 8, 53, 332, 2029, 12236, 73193, 435480, 2581273, 15258256, 90005981, 530071076, 3117718213, 18318316948, 107537570513, 630844709168, 3698457841201, 21671720364056, 126932183197061, 743158103135484]

cp's OEIS Frontend

A110099 Number of return steps to the line y = x from the line y = x+1 (i.e., E steps from the line y = x+1 to the line y = x) in all Delannoy paths of length n.

Table of values

List of values