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A172718 Number of 9*n X n 0..2 arrays with row sums 2 and column sums 18 1
1, 44152809, 12331175198408791725, 1237527402223677679598899948925700, 10500268455366221173591541192738752806765261187500, 3138480844349933121860864061245246387668619696538799391771830312500 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A017636 A139029 A206326 * A270611 A049360 A130913
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified July 22 13:05 EDT 2024. Contains 374499 sequences. (Running on oeis4.)