OFFSET
0,2
COMMENTS
It would be highly desirable to obtain a closed form for a(n).
MATHEMATICA
nmax = 10; Table[Det[Table[((i+j-1)!)^2, {i, 1, k}, {j, 1, k}]], {k, 1, nmax}] (* Vaclav Kotesovec, Feb 24 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Karol A. Penson, Sep 15 2009
STATUS
approved