27937

Appears in sequences

• Differences between two positive cubes in exactly 2 ways.at n=17A014440
• Strong pseudoprimes to base 53.at n=17A020279
• s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = A000201 (lower Wythoff sequence), t = A001950 (upper Wythoff sequence).at n=41A025119
• Difference between two positive cubes in more than one way.at n=19A034179
• Number of partitions of 3-smooth numbers into parts not greater than 3.at n=34A117220
• Number of partitions of n^2 into at most three parts.at n=24A274250
• First occurrence of a run of exactly n consecutive integers with an odd number of prime factors.at n=11A275509
• Numbers k such that (52*10^k - 1)/3 is prime.at n=21A282508
• Positive numbers that are the sum of two (possibly negative) cubes in at least 2 ways (primitive solutions).at n=38A293647
• Sum of two (possibly negative) coprime cubes in at least 2 ways, but not the sum of 2 noncoprime cubes.at n=21A293648
• Numbers k for which rank of the elliptic curve y^2 = x^3 - 432*k^2 is 4.at n=1A309964
• Centered hexagonal numbers that are sphenic numbers.at n=9A382628