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A216629
a(n) = A163085(n)/(floor(n/2)!)^2.
1
1, 1, 2, 12, 18, 540, 1200, 168000, 735000, 463050000, 4667544000, 12938431968000, 332086420512000, 3989022083190144000, 279394363051195392000, 14383221809875538780160000, 2892376010829659126572800000, 632822947409421120302862912000000
OFFSET
0,3
PROG
(Sage)
def A216629(n): return A163085(n)/factorial(n//2)^2
[A216629(n) for n in (0..17)]
CROSSREFS
Cf. A069651.
Sequence in context: A115109 A048001 A109299 * A337290 A259409 A073257
KEYWORD
nonn
AUTHOR
Peter Luschny, Sep 18 2012
STATUS
approved