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A369121
a(n) = A369134(n, n).
2
-1, 1, -1, 3, -1, 5, -15, 105, -21, 105, -315, 2475, -99, 1001, -1001, 15015, -105105, 23205, -663, 1322685, -101745, 5595975, -2611455, 60063465, -1225785, 15935205, -51555075, 4686825, -5368545, 40970475, -40970475, 302703526125
OFFSET
0,4
CROSSREFS
Sequence in context: A291665 A181836 A124740 * A347556 A368340 A338172
KEYWORD
sign
AUTHOR
Peter Luschny, Jan 14 2024
STATUS
approved