78221

Appears in sequences

• Residues of the Lucas - Lehmer primality test for M(17) = 131071.at n=13A129222
• Constant term in the reduction by (x^2 -> x + 1) of the polynomial p(n,x) defined below at Comments.at n=11A192909
• Number of zero-sum -n..n arrays of 5 elements with first through fourth differences also in -n..n.at n=19A201440