124830

Appears in sequences

• Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,0.at n=5A037526
• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,3,2.at n=8A037611
• Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four, five, six, seven or eight distinct values for every i,j,k<=n.at n=7A211599
• Expansion of 1/((1 - x)^9 + x^9).at n=12A306942
• G.f. A(x,y) satisfies 1/x = Sum_{n=-oo..+oo} A(x,y)^n * (A(x,y)^n + y)^(n+1), as a triangle of coefficients T(n,k) of x^n*y^k in A(x,y), read by rows.at n=49A379200