57479

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 61 ones.at n=3A031829
• Composite numbers x such that sigma(x+120) = sigma(x)+120.at n=39A054985
• Number of nX3 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=14A200985
• Numbers m such that there is an integer k with the property that antisigma(m) = k * sigma(m) + k.at n=5A244926
• Smallest semiprime p1*p2 such that p2 mod p1 = n and no prime is used more than once in the sequence.at n=21A386256