login
A162078
Number of n X n symmetric 0..2 arrays with rows, considered as 3-ary numbers, in nondecreasing order
1
3, 15, 151, 3495, 198503, 28534087, 10586251623, 10294697200775, 26586793509930791, 184408340876752843335, 3468543642532070124804583, 178388170025664039139771509767, 25266393167195209778186849218689703
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A230367 A293844 A181535 * A245069 A317667 A228901
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved