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A358303
Number of 4-sided regions in the Farey Diagram Farey(n,n), divided by 8.
0
1, 13, 57, 231, 532, 1497, 2935, 6031, 10273, 19680, 29441, 51261, 74473, 112721, 159299, 242763, 317155, 462930, 598755
OFFSET
1,2
COMMENTS
This is the second column in A358885, divided by 8.
It would be nice to have a formula.
CROSSREFS
The Farey Diagrams Farey(m,n) are studied in A358298-A358307 and A358882-A358885, the Completed Farey Diagrams of order (m,n) in A358886-A358889.
Sequence in context: A368813 A222161 A218593 * A212405 A147384 A147011
KEYWORD
nonn,more
AUTHOR
STATUS
approved