525824

Appears in sequences

• Taxi-cab numbers: sums of 2 cubes in more than 1 way.at n=30A001235
• Expansion of g.f.: x*(4-7*x+2*x^2-8*x^4+16*x^5-16*x^6)/((1-2*x) * (1-2*x^2) * (1-2*x+2*x^2) * (1+2*x^2)).at n=18A100213
• Expansion of (4 - 7*x + 2*x^2)/((1-2*x)*(1 - 2*x + 2*x^2)).at n=18A100215
• Number of -1..1 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 or four distinct values for every i,j,k<=n.at n=17A211525
• Number of (w,x,y,z) with all terms in {0,...,n} and odd range.at n=31A212890
• a(n) = 2^(n-1)*(2^n+3).at n=10A257273
• Number of monomials in c(n) where c(1) = x, c(2) = y, c(n+2) = c(n+1) + c(n)^2.at n=22A290075
• Numbers that are the sum of two positive cubes in exactly two ways.at n=30A343708
• Taxicab numbers that are abundant.at n=16A379466
• a(n) = 2^(n-7)*(n^4 - 6*n^3 + 59*n^2 - 54*n)/3.at n=13A384506