33047

Appears in sequences

• Number of loops of length 4n on square grid that turn at each step and return to start in original direction.at n=8A000644
• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-3)*a(3) for n >= 4, with initial terms 1, -1, 1, 1.at n=25A025258
• Multiplicity of highest weight (or singular) vectors associated with character chi_66 of Monster module.at n=41A034454
• Basis for code in A075928.at n=10A075929
• Numbers n such that 101101 * 10^n + 1 is prime.at n=19A106745
• Complete list of numbers that take three steps to collapse to a single digit in base 3 (written in base 10).at n=5A253057
• a(n) = Sum_{d|n} (n/d)^d * binomial(d+n/d-1, d).at n=21A338662