33558527

Appears in sequences

• Number of reversible string structures with n beads using exactly two different colors.at n=26A056326
• Numbers having in binary representation a leading 1 followed by n zeros and n-1 ones.at n=12A092431
• Expansion of (1-3*x+3*x^2)/(1-5*x+10*x^2-10*x^3+4*x^4).at n=25A098179
• a(n) = 6*a(n-1) - 8*a(n-2)-3 for n > 1; a(0) = 35, a(1) = 135.at n=10A171473
• Number of bicolored cyclic patterns n X n.at n=25A187767