130945815

Appears in sequences

• a(n) = (2*n+7)!!/7!!, related to A001147 (odd double factorials).at n=7A051581
• Highly composite odd numbers: odd numbers where d(n) increases to a record.at n=31A053624
• Oddly superabundant numbers: odd n with sigma(n)/n > sigma(k)/k for all odd k < n.at n=27A119239
• Terms in A038547 where prime signature differs from that of corresponding term in A005179.at n=22A122814
• Numerators of rationals r(n) related to the z-sequence of the Sheffer matrix A060821 for Hermite polynomials.at n=9A130187
• Numbers with exactly 7 distinct odd prime divisors {3,5,7,11,13,17,19}.at n=12A147580
• a(n) = (2*n+1)!! / ((floor((n-1)/3)*2+1))!!at n=10A220747
• Numbers that are not practical (A237287) and have more divisors than any smaller number that is not practical.at n=30A335029
• Positions of records in A188171.at n=25A343136
• Positions of records in A188172.at n=25A343137
• Coefficients of the series S(p, q) for which (-sqrt(p))*S converges to the largest real root of x^3 - p*x + q for 0 < p and 0 < q < 2*(p/3)^(3/2).at n=8A343445
• a(n) is the denominator of Sum_{k=1..n} (-1)^(k+1) / (2*k-1)!!.at n=9A354299