2108304

Appears in sequences

• Numbers of the form (11^i)*(12^j), with i, j >= 0.at n=23A108218
• Numbers with prime factorization p^2*q^4*r^4 where p, q, and r are distinct primes.at n=18A190471
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=11A208068
• Perfect powers k (exponent greater than 1) such that k-1 and k+1 are both semiprime.at n=20A276564
• Numbers n such that n^3-1 is a sum of cubes in 1 way and a difference of cubes in 2 ways.at n=30A281789