A097346 Numerators of a Fibonacci related transform of 1/(n+1).

1, 2, 9, 24, 170, 240, 2415, 7000, 30744, 45360, 741510, 1108800, 21673080, 32744712, 49684635, 151351200, 3932288360, 6028102080, 176061013128, 271314186000, 419047770960, 648560072160, 23130491854470, 35929017476352

Offset: 0

Author

Paul Barry, Aug 06 2004

Keywords

• easy
• nonn
• frac

Crossrefs

Cf. A097345.

Formula

a(n)=A003418(n)*sum{k=0..floor(n/2), binomial(n-k, k)/(k+1)}