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A159377 Number of n X n arrays of squares of integers with every (n-2) X (n-2) subblock summing to 9. 1
80, 24734, 15018432, 3417742132, 348819764864, 13957776061203, 290988318683360, 3843118106335319, 36290039874543840, 265026530243707120, 1579438944284211680, 7981229569422064090, 35179752294767789616 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

R. H. Hardin, Table of n, a(n) for n=4..22

CROSSREFS

Sequence in context: A265846 A269145 A187052 * A183582 A068273 A068285

Adjacent sequences:  A159374 A159375 A159376 * A159378 A159379 A159380

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 11 2009

STATUS

approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)