42748

Appears in sequences

• Constant term of the reduction by x^2->x+3 of the polynomial p(n,x)=1+x^n+x^(2n).at n=6A192468
• Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=9A222567