A337351 - cp's OEIS frontend

A337351 a(n) is the number of lattice paths from (0,0) to (3n,2n) using only the steps (1,0) and (0,1) and which do not touch any other points of the form (3k,2k).

n	a(n)
0	1
1	10
2	110
3	1805
4	34770
5	731760
6	16295600
7	377438250
8	8999246900
9	219399101415
10	5444124108810
11	137040309706725
12	3490834454580950
13	89816746611096280
14	2330761164942308080
15	60932036847971297230
16	1603218808449019802550
17	42423276620326253035205

[1, 10, 110, 1805, 34770, 731760, 16295600, 377438250, 8999246900, 219399101415, 5444124108810, 137040309706725, 3490834454580950, 89816746611096280, 2330761164942308080, 60932036847971297230, 1603218808449019802550, 42423276620326253035205]

cp's OEIS Frontend

A337351 a(n) is the number of lattice paths from (0,0) to (3n,2n) using only the steps (1,0) and (0,1) and which do not touch any other points of the form (3k,2k).

Table of values

List of values