67240

Appears in sequences

• a(n) = n^3 - n^2.at n=41A045991
• a(n) = n^2 * phi(n).at n=40A053191
• a(n) = sigma_3(n) - sigma_2(n).at n=40A092349
• a(n) = p^2*(p-1), where p = prime(n).at n=12A135177
• List of different composites in Pascal-like triangles with index of asymmetry y = 2 and index of obliquity z = 0 or z = 1.at n=44A141066
• Number of additive cyclic codes over GF(4) of length n that can be generated by one codeword.at n=13A143696
• Numbers n such that phi(n)/n = 16/41.at n=20A176598
• a(p^n)=p^(n+1)(p-1) if p is prime and a(nm)=lcm(a(n),a(m)) if gcd(n,m)=1.at n=40A236563
• Palindromic numbers in bases 3 and 9 written in base 10.at n=74A259386
• Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its north or southwest neighbor modulo n and the upper left element equal to 0.at n=5A266859
• T(n,k) = Number of n X k arrays containing k copies of 0..n-1 with no element 1 greater than its north or southwest neighbor modulo n and the upper left element equal to 0.at n=26A266861
• Number of length-n 0..2 arrays with no following elements larger than the first repeated value.at n=10A267465
• Cuboids that fit in square rings from A288486 obtaining a fifth power.at n=9A288487
• a(n) is the area of the rectangle whose edges are n and A375673(n).at n=38A375675
• The Euler totient of the smallest cube divisible by n.at n=40A390754
• The Euler totient of the smallest cubefull number divisible by n.at n=40A390756