983039

Appears in sequences

• Least m which can be written as i*j+i+j in n different ways: A072670(m)=n.at n=33A072671
• a(n) is the smallest x such that the quotient d(x+1)/d(x) equals n, where d = A000005.at n=16A080371
• Smallest composite number with exactly n 1's in binary representation.at n=18A089226
• Smallest semiprime with Hamming weight n (i.e., smallest semiprime with exactly n ones when written in binary), or -1 if no such number exists.at n=18A102029
• Smallest nonprime with Hamming weight n (i.e., with exactly n 1's when written in binary).at n=18A140330
• a(n) = (n-1)*2^n - 1.at n=15A163383
• a(n) = 15*2^n - 1.at n=16A196305
• a(n) is the smallest number k representable as x*y+x+y, where x>=y>1, in exactly n ways, or -1 if no such k exists.at n=31A253975
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 950", based on the 5-celled von Neumann neighborhood.at n=19A284481