1327104

Appears in sequences

• Orders of finite Abelian groups having the incrementally largest numbers of nonisomorphic forms (A046054).at n=25A046055
• Squares k which are divisible by phi(k).at n=35A063755
• Product of nonzero digits of A066547(n).at n=11A066581
• Products of exactly 18 primes (generalization of semiprimes).at n=7A069279
• a(1) = 1, a(n+1)= a(n)*(n+1) divided by the largest prime divisor of n+1.at n=20A076928
• Square-factorial numbers: a(1) = 1, a(n+1) = a(n) * largest square divisor of (n+1).at n=23A100777
• a(n) = n!/A102356(n).at n=20A102456
• Smallest number beginning with 1 and having exactly n prime divisors counted with multiplicity.at n=18A106421
• a(n) is the least number having sum of digits n in base 10 and also exactly n prime factors (counted with multiplicity).at n=16A113758
• Squares in A000695.at n=31A114399
• Coefficient of q^n in (1-q)^4/(1-4q); dimensions of the enveloping algebra of the derived free Lie algebra on 4 letters.at n=11A118265
• Numbers of divisors associated with the entries of A120585.at n=24A120586
• a(n) = 4*n^4.at n=24A141046
• a(n) = n^5*(n+1)^2/2.at n=8A163275
• a(n) = solution to the "Select All, Copy, Paste" problem: Given the ability to type a single letter, or to type individual "Select All", "Copy" or "Paste" command keystrokes, what is the maximal number of letters of text that can be obtained with n keystrokes?at n=49A178715
• The multiplicative Wiener index of the rooted tree with Matula-Goebel number n.at n=38A196061
• a(0) = 1, a(n) = a(n - 1) * (length of binary representation of n).at n=13A214936
• Rolling cube footprints: number of n X 6 0..5 arrays starting with 0 where 0..5 label faces of a cube and every array movement to a horizontal or antidiagonal neighbor moves across a corresponding cube edge.at n=1A223355
• T(n,k)=Rolling cube face footprints: number of nXk 0..5 arrays starting with 0 where 0..5 label faces of a cube and every array movement to a horizontal or antidiagonal neighbor moves across a corresponding cube edge.at n=22A223357
• T(n,k)=Rolling cube face footprints: number of nXk 0..5 arrays starting with 0 where 0..5 label faces of a cube and every array movement to a horizontal or antidiagonal neighbor moves across a corresponding cube edge.at n=17A223357