53559

Appears in sequences

• a(n) = Sum_(i=1..n) binomial(i+2,3)^2 [ Sequential sums of the tetragonal numbers or "tetras" (pyramidal, square) raised to power 2 (drawn from the 4th diagonal - left or right - of Pascal's Triangle) ].at n=8A086020
• Integers n such that 2^n == 17 (mod n).at n=6A124974
• Row sums of A174158.at n=6A319743