OFFSET
0,3
COMMENTS
Also the number of (n^2-1)-step walks on n-dimensional cubic lattice from (1,0,...,0) to (n,n,...,n) with positive unit steps in all dimensions such that for each point (p_1,p_2,...,p_n) we have p_1<=p_2<=...<=p_n or p_1>=p_2>=...>=p_n.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..12
CROSSREFS
KEYWORD
nonn,walk
AUTHOR
Alois P. Heinz, Feb 29 2012
STATUS
approved