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A165343
First series of Hankel determinants based on A001044(n)=(n!)^2 : a(n)=det(A001044(i+j-2))=det(((i+j-2)!)^2), i,j=1,2...n. Hankel transform of A001044.
2
1, 3, 656, 58910976, 7213311014731776, 3024546589156405495726080000, 9172616430046109813423337553212211200000000
OFFSET
0,2
COMMENTS
It would be highly desirable to obtain a closed form for a(n).
MATHEMATICA
nmax = 15; Table[Det[Table[((i+j-2)!)^2, {i, 1, k}, {j, 1, k}]], {k, 1, nmax}] (* Vaclav Kotesovec, Feb 24 2019 *)
CROSSREFS
Sequence in context: A158600 A092301 A229668 * A278316 A361072 A266639
KEYWORD
nonn
AUTHOR
Karol A. Penson, Sep 15 2009
STATUS
approved