A067219 - OEIS

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A067219

Number of n X n 0..11 matrices with all row and column sums equal.

1

12, 144, 75516, 4641494832, 31335724079805792, 24293081804978470413606900

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Sequence in context: A138444 A137886 A097303 * A075619 A055332 A288792

Adjacent sequences: A067216 A067217 A067218 * A067220 A067221 A067222

KEYWORD

nonn,more

AUTHOR

R. H. Hardin, Feb 20 2002

EXTENSIONS

a(5)-a(6) from Sean A. Irvine, Dec 11 2023

STATUS

approved