OFFSET
1,2
COMMENTS
As A354380, but with mirror-image figures counted as distinct.
FORMULA
a(n) = A354405(n)/4 if n is odd. - Pontus von Brömssen, Nov 26 2025
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Aaron N. Siegel, May 25 2022
STATUS
approved
