60663

Appears in sequences

• Numbers k such that k through k+4 all have the same number of divisors.at n=12A049051
• Number of terms of the fractional part of A001203 for which the geometric mean produces increasingly better approximations to Khinchin's constant.at n=20A059101
• Smallest number whose square has sum of digits A056991(n).at n=31A067179
• Number of non-isomorphic (i.e., defined up to a rotation and a reflection) maximal independent sets of the n-cycle graph having 2n isomorphic representatives.at n=55A127683
• a(n) is the sum of the terms of the symmetric square array defined by M(i,j) = prime(i)+i-j for i >= j and M(i,j) = M(j,i) if i < j.at n=27A308731
• a(n) is the least integer k such that the sum of the digits of k^2 is 9*n.at n=8A369953
• Smallest k such that the sum of digits of k^2 in base 10 is divisible by n.at n=23A389004