OFFSET
0,2
COMMENTS
Binomial transform of A088127.
FORMULA
a(n) = Sum_{k=0..floor(n/2)} binomial(n,2*k) * (n-2*k+1)!. - Ilya Gutkovskiy, Apr 10 2022
MATHEMATICA
With[{nn=20}, CoefficientList[Series[Cosh[x]/(1-x)^2, {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Feb 02 2020 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Sep 19 2003
EXTENSIONS
Definition clarified by Harvey P. Dale, Feb 02 2020
STATUS
approved