250000

Appears in sequences

• a(n) = Product_{i=0..7} floor((n+i)/8).at n=38A009694
• Numbers k such that the decimal expansion of k^2 contains k as a substring.at n=37A018834
• Numbers of form 4^i*5^j, with i, j >= 0.at n=42A025617
• Numbers of form 5^i*10^j, with i, j >= 0.at n=27A025625
• Squares such that digits of sqrt(n) appear in both n and n^(3/2).at n=30A029781
• Substring of both its square and its cube.at n=35A029943
• Squares which are palindromes in base 7.at n=18A029993
• a(n) = floor(10^6/n).at n=3A033426
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*10^j.at n=19A038252
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*10^j.at n=18A038252
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*5^j.at n=16A038307
• Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*5^j.at n=17A038307
• Ambitious numbers: numbers n with the property that if a number ends in n then it is divisible by n.at n=25A039690
• Internal digits of n^2 include digits of n as substring.at n=21A046836
• Squares expressible as the sum of two positive cubes in at least one way.at n=13A050802
• Expansion of (1-x)^2/(1-5*x).at n=8A055842
• Numbers n such that sum of the cubes of the distinct prime factors of n equals the sum of the cubes of the digits of n.at n=8A067170
• Numbers n such that sum of the squares of the prime factors of n equals the sum of the squares of the digits of n.at n=18A067184
• Treated as strings, the concatenation c of the prime factors of n, in increasing order, is an initial segment of n. Equivalently, n begins with c.at n=14A069154
• Numbers whose sum of exponents is equal to the product of prime factors.at n=15A071174