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A187465
Number of 5X5 0..n arrays with all the 2X2 subblocks nonsingular and the array of 2X2 subblock determinants symmetric
0
1272, 11684688, 3387715318, 216668424092, 5212823523842, 83101128839744
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OFFSET
1,1
COMMENTS
Row 4 of
A187462
LINKS
Table of n, a(n) for n=1..6.
CROSSREFS
Sequence in context:
A351678
A273000
A282328
*
A325604
A230758
A318201
Adjacent sequences:
A187462
A187463
A187464
*
A187466
A187467
A187468
KEYWORD
nonn
AUTHOR
R. H. Hardin
Mar 10 2011
STATUS
approved
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Last modified July 26 08:22 EDT 2024. Contains 374615 sequences. (Running on oeis4.)