2066715

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*9^j.at n=31A038227
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*3^j.at n=32A038293
• Denominators of partial sums of series for 3*arctanh(1/3) = (3/2)*log(2).at n=4A096950
• Least term of A004767 with exactly 2n divisors.at n=21A204086
• Number of (n+2) X (1+2) 0..3 arrays with every consecutive three elements in every row and column not having exactly two distinct values, and in every diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=31A253018
• a(n) is the smallest positive integer divisible by exactly n nonpowers of 2.at n=43A327328
• A variant of Look and Say sequence (A005150) based on exponents in prime factorization of n (see Comments section for precise definition).at n=30A356008