23166783

Appears in sequences

• Number of multiples of 3 in 0..2^n-1 with an even sum of base-2 digits.at n=27A036557
• Expansion of (1 - 5*x + 5*x^2)/((1-x)*(1-3*x)*(1-4*x)).at n=13A085282
• Expansion of (1-x)^4/((1-x)^6 - x^6).at n=26A119336
• Expansion of x^2*(1-x)^3/((1-2*x)*(1-x+x^2)*(1-3*x+3x^2)).at n=27A227430