603180793741domain: NAppears in sequencesNumerators of fractions leading to e - 1/e (A174548).at n=17A195326Numerators of fractions leading to e - 1/e (A174548).at n=18A195326a(n) is the numerator of Sum_{k=0..n} 1 / (2*k+1)!.at n=8A354211