33801

Appears in sequences

• Numbers n such that 55*2^n-1 is prime.at n=40A050553
• Numbers n such that 54 'Reverse and Add' steps are needed to reach a palindrome.at n=11A065321
• a(n) = (1/n!)*A001688(n).at n=12A094793
• a(n) = 50*n^2 + 1.at n=25A157916
• Number of nXnXn triangular 0..3 arrays with no element equal to the sum mod 4 of any two neighbors.at n=4A193183
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 517", based on the 5-celled von Neumann neighborhood.at n=15A282599
• a(n) is the number of regions formed by n-secting the angles of a decagon.at n=40A335800