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A172649 Number of 2*n X n 0..2 arrays with row sums 3 and column sums 6 1
0, 6, 5881, 34145664, 755265546000, 50432680389260400, 8610740229284196003000, 3321735626954282018581900800, 2631822682451717147804985743769600, 3970498303510674585925708059712525440000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n=1..41
CROSSREFS
Sequence in context: A367958 A011788 A320446 * A111152 A202969 A003191
Adjacent sequences: A172646 A172647 A172648 * A172650 A172651 A172652
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved

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Last modified June 2 12:34 EDT 2024. Contains 373040 sequences. (Running on oeis4.)