57505

Appears in sequences

• Cubes written in base 8.at n=28A004638
• Indices of primes in sequence defined by A(0) = 37, A(n) = 10*A(n-1) + 27 for n > 0.at n=11A101849
• Denominators of the continued fraction convergents of the decimal concatenation of the lower bound of twin primes.at n=18A128845
• Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.at n=6A233114
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays x(i,j) with row sums Sum_{j=1..k+1} x(i,j) nondecreasing, and column sums Sum_{i=1..n+1} i*x(i,j) nondecreasing.at n=27A233117
• Composite squarefree numbers that are multiples of the root mean square of their prime factors.at n=7A255356
• a(n) = n*(n + 11)*(n + 22)*(n + 33)/24.at n=20A264448
• Composite squarefree integers for which the sum of the squares of their factors is a square.at n=32A379780