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A347597
a(n) = Permanent(T(2*n + 1)) where T(n) is the tangent matrix defined in A346831. Bisection of A347598 (odd indices).
3
0, 2, -12, 230, -6936, 316682, -20359332, 1754340590, -195242324016, 27266796955922, -4669829301365052, 962523286888757750, -235056895264868039496, 67119429827860669710362
OFFSET
0,2
CROSSREFS
Sequence in context: A101712 A156484 A333447 * A009272 A013141 A013143
KEYWORD
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AUTHOR
Peter Luschny, Sep 14 2021
STATUS
approved