66929

Appears in sequences

• Number of (n+4) X 8 0..2 matrices with each 5 X 5 subblock idempotent.at n=8A224621
• Composite squarefree numbers n such that p(i)+5 divides n-5, where p(i) are the prime factors of n.at n=13A225715
• Numbers n such that phi(n) + sigma(n) is the mean value of phi(sigma(n)) and sigma(phi(n)).at n=1A230237
• E.g.f.: A(x) = exp( Integral A(x)^x dx ).at n=9A274739
• 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 41", based on the 5-celled von Neumann neighborhood.at n=32A278423
• Denominators of triangle related to enumeration of minimal 2-covers of a labeled n-set.at n=30A280753
• a(n) is the least k such that [mu(k), mu(k+1), ..., mu(k+n-1)] forms a palindrome, where mu = A008683.at n=26A293041