OFFSET
5,1
LINKS
Alois P. Heinz, Table of n, a(n) for n = 5..180
EXAMPLE
a(5) = 5: [1,1,1,1,1], [2,2,2,2,2], [3,3,3,3,3], [4,4,4,4,4], [5,5,5,5,5].
a(10) = 2*C(10,2) = 90: [1,1,1,1,1,2,2,2,2,2], ..., [10,10,10,10,10,9,9,9,9,9].
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Aug 28 2013
STATUS
approved