27458

Appears in sequences

• Numerators of continued fraction convergents to fifth root of 5.at n=11A002364
• Numbers whose least quadratic nonresidue (A020649) is 17.at n=20A025026
• Number of numbers below 10^n with nonzero multiplicative digital root 2.at n=4A051822
• Number of (n+1)X(1+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.at n=2A236501
• Number of (n+1)X(3+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.at n=0A236503
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.at n=3A236505
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.at n=5A236505
• Index of the first superabundant number k having abundance >= n.at n=15A240074
• Least number m such that there exist exactly n pairs of numbers (a,b), 0 < a < b < m, such that a+b, a+m, and b+m are all squares.at n=33A246766