OFFSET
1,2
COMMENTS
FORMULA
a(n) ~ exp(2n).
MATHEMATICA
a[n_] := HarmonicNumber[2*n-1] // Numerator; Table[a[n], {n, 1, 25}]
PROG
(Magma) [Numerator(HarmonicNumber(2*n-1)): n in [1..30]]; // Bruno Berselli, Nov 20 2013
CROSSREFS
KEYWORD
nonn,frac,easy
AUTHOR
Jean-François Alcover and Paul Curtz, Nov 20 2013
STATUS
approved