70304

Appears in sequences

• a(n) = 4*n^3.at n=26A033430
• Numbers whose product of exponents is equal to the sum of prime factors.at n=39A071175
• 2*Sum(floor(C(n,w)/w),w=1..n/2-1)+floor(C(n,n/2)/(n/2)) if n is even, otherwise 2*Sum(floor(C(n,w)/w),w=1..(n-1)/2).at n=17A085573
• a(n) = A003474(n)/n.at n=12A094678
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=22A114131
• a(n) is the n-th positive integer which is divisible by the same distinct primes as n and which is divisible by no other primes.at n=25A119361
• Numbers of the form b^m/2 for even b and odd m > 2.at n=34A126032
• Numbers n such that tau(phi(n)) = sigma(rad(n)).at n=27A173745
• Products of the 5th power of a prime and a distinct prime of the 3rd power (p^5*q^3).at n=7A179671
• a(n) = floor(1/{(1+n^4)^(1/4)}), where {} = fractional part.at n=25A184536
• Floor(1/{(8+n^4)^(1/4)}), where {}=fractional part.at n=51A184632
• Expansion of 1 + Sum_{n>=1} (x^(n^2) / Product_{k>=n} (1 - x^k)).at n=44A188216
• Numerators of (product of divisors of n / sum of divisors of n).at n=51A244668
• Numbers n such that n is the sum of two nonzero squares while n^2 is the sum of two positive cubes.at n=40A273554
• Numbers whose prime factors are 2 and 13.at n=25A288162
• Numbers whose sum of squarefree divisors and sum of nonsquarefree divisors are both squarefree numbers.at n=18A300984
• Cubefull numbers (A036966) with a record gap to the next cubefull number.at n=23A363014
• a(n) = n^3*tau(n).at n=25A386012
• Cubefull numbers that are neither biquadratefree nor biquadratefull.at n=35A391593