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A159376 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 9 1
40, 5670, 1311488, 139966840, 8517111552, 256972682203, 4498018289528, 52749621622223, 457173827246752, 3130129802580412, 17742633295703592, 86151806412861614, 367633855676693776, 1406125033775057961 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

R. H. Hardin, Table of n, a(n) for n=3..27

CROSSREFS

Sequence in context: A123810 A275655 A146198 * A196706 A196855 A196949

Adjacent sequences:  A159373 A159374 A159375 * A159377 A159378 A159379

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 11 2009

STATUS

approved

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Last modified August 12 23:51 EDT 2022. Contains 356077 sequences. (Running on oeis4.)