196677847971domain: NAppears in sequencesDenominators of convergents to e.at n=26A007677a(3n) = a(3n-1) + a(3n-2), a(3n+1) = 2n*a(3n) + a(3n-1), a(3n+2) = a(3n+1) + a(3n).at n=28A113874a(n) = (n+8)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.at n=10A176735a(n) = hypergeometric([n, -n], [], 1).at n=10A278069