OFFSET
0,2
MAPLE
H:=n->sum(1/k, k=1..n): a:=n->(2*n+1)!*H(2*n+1)/n!: seq(a(n), n=0..17); # Emeric Deutsch, Nov 28 2006
MATHEMATICA
f[n_] := HarmonicNumber[2n + 1](2n + 1)!/n!; Table[f@n, {n, 0, 15}] (* Robert G. Wilson v, Nov 26 2006 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Leroy Quet, Nov 24 2006
EXTENSIONS
More terms from Robert G. Wilson v, Nov 26 2006
More terms from Emeric Deutsch, Nov 28 2006
STATUS
approved