OFFSET
1,2
COMMENTS
Paths down a n-high rectangular-grid right triangle with interior neighbor fanout 2*5+1
Column 5 of A180906
LINKS
R. H. Hardin, Table of n, a(n) for n=1..100
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 23 2010
STATUS
approved