67108266

Appears in sequences

• a(n) = 2^n - n*(n-3).at n=26A176777
• Number of binary strings of length 2n which contain the ones' complement of each of their two halves.at n=24A237500
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 457", based on the 5-celled von Neumann neighborhood.at n=25A288399