70096

Appears in sequences

• Numerator of n*(n-3)*(3*n^2-6*n+2)/(3*(n-1)*(n-2)).at n=13A023417
• EULER transform of A001511.at n=29A092119
• a(n) = number of solutions to the Diophantine equation x+y^2+z^3=n^4 with positive x,y,z.at n=29A121876
• Number of (n+2) X (1+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111.at n=11A260363
• a(n) = Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} phi(i*j*k) / phi(j*k).at n=19A372663