4194292

Appears in sequences

• Expansion of o.g.f. x*(1 - x + x^2)/(1 -3*x +x^2 +3*x^3 -2*x^4).at n=22A173009
• Expansion of g.f. 8/(1-2*z)-12/(1-z)+z+5.at n=19A173034
• a(n) = 4^n - n - 1.at n=10A290721
• a(n) = 2^n - floor((n+3)/2).at n=22A320933