A162081 Number of n X n symmetric 0..5 arrays with rows, considered as 6-ary numbers, in nondecreasing order

6, 111, 8441, 2951871, 4990997276, 42227736188406, 1835170482716726511, 417963227425376901238466, 506719281813970629197724782396, 3310958766723218703784866984459793926

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n=1..11

Crossrefs

Sequence in context: A380946 A024273 A024274 * A296949 A009612 A009798

Adjacent sequences: A162078 A162079 A162080 * A162082 A162083 A162084

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved