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A159202 Number of n X n arrays of squares of integers with every 4X4 subblock summing to 4 0
1836, 19252, 120420, 485580, 1431580, 7580604, 30777228, 98695180, 260875260, 1171616956, 4324917900, 13424965644 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

Table of n, a(n) for n=4..15.

CROSSREFS

Sequence in context: A133539 A234492 A100970 * A238294 A274683 A231079

Adjacent sequences: A159199 A159200 A159201 * A159203 A159204 A159205

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 06 2009

STATUS

approved

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Last modified April 1 13:17 EDT 2023. Contains 361691 sequences. (Running on oeis4.)