A187465 Number of 5X5 0..n arrays with all the 2X2 subblocks nonsingular and the array of 2X2 subblock determinants symmetric

1272, 11684688, 3387715318, 216668424092, 5212823523842, 83101128839744

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