4473925

Appears in sequences

• G.f. x^2*(-1+x+x^2)/((1-x)*(2*x-1)*(x+1)*(x^2+1)).at n=26A115851
• a(0)=0; a(n+1) = 2*a(n) + period 4:repeat 0,1,-2,1.at n=26A181586
• Number of (n+3) X (1+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.at n=22A262450