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A159360 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 5 1
32, 1062, 59616, 1086094, 10042272, 61124544, 280188272, 1045829432, 3339944928, 9435994838, 24147340800, 56953687086, 125443556992, 260657649336, 515094590448, 974349778400, 1773602460704, 3120448646646, 5325900683168 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

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

FORMULA

Empirical G.f.: 2*x^3*(-16 - 355*x - 24847*x^2 - 241724*x^3 - 604724*x^4 - 446879*x^5 - 67579*x^6 + 9004*x^7 + 940*x^8 + 8*x^9)/(-1+x)^11. - Vaclav Kotesovec, Nov 30 2012

CROSSREFS

Sequence in context: A041481 A158685 A265021 * A249392 A114933 A038097

Adjacent sequences:  A159357 A159358 A159359 * A159361 A159362 A159363

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 11 2009

STATUS

approved

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Last modified February 20 22:47 EST 2020. Contains 332086 sequences. (Running on oeis4.)