A376075 - cp's OEIS frontend

A376075 Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2k,2k).

n	a(n)
0	1
1	2
2	6
3	14
4	52
5	140
6	558
7	1598
8	6604
9	19588
10	82780
11	251212
12	1077992
13	3324760
14	14427422
15	45039422
16	197122524
17	621205076
18	2737289748
19	8691699524
20	38510822360
21	123045322024
22	547682980716
23	1759017606220
24	7859796084984
25	25355507376808
26	113670929821304

[1, 2, 6, 14, 52, 140, 558, 1598, 6604, 19588, 82780, 251212, 1077992, 3324760, 14427422, 45039422, 197122524, 621205076, 2737289748, 8691699524, 38510822360, 123045322024, 547682980716, 1759017606220, 7859796084984, 25355507376808, 113670929821304]

cp's OEIS Frontend

A376075 Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2k,2k).

Table of values

List of values

cp's OEIS Frontend

A376075 Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2*k,2*k).

Table of values

List of values

A376075 Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2k,2k).