48645

Appears in sequences

• a(n) = n*(2*n-1)*(2*n+1).at n=23A035328
• Number of n-node rooted unlabeled trees with exactly 3 edges at root and otherwise out-degree <= 2.at n=18A036658
• Denominator of sum of reciprocals of first n pentatope numbers A000332.at n=43A118412
• Number of (w,x,y,z) with all terms in {1,...,n} and w < harmonic mean of {x,y,z}.at n=19A212106
• Numbers k such that 5*10^k + 11 is prime.at n=11A309774
• Smallest fixed points (>0) of the base-2*n Kaprekar map.at n=22A319839