39234

Appears in sequences

• a(n) is the concatenation of n and 6n.at n=38A009440
• a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 3.at n=32A050051
• Multiples of 3018.at n=12A086746
• Numbers k such that k, k+1, k+2 and k+3 are products of 4 primes.at n=14A124728
• Numbers of the form (5^j + 7^k)/2, for j and k >= 0.at n=45A226792
• Start of a triple of consecutive squarefree numbers each of which has exactly 4 distinct prime factors.at n=2A242607
• Column 2 of triangle in A288187.at n=14A333279