95170

Appears in sequences

• Quasi-Carmichael numbers to base -2: squarefree composites n such that for every prime p that divides n, p+2 divides n+2.at n=5A029562
• a(n) = n*(3*n^2 + 6*n + 1).at n=31A196507
• G.f. satisfies: A(x) = 1 + x*(A(x) + A(-x)) + x^2*A(x)*A(-x).at n=22A208888
• Number of n-bead necklaces labeled with numbers -1..1 not allowing reversal, with sum zero with no three beads in a row equal.at n=15A208938
• Even Quasi-Carmichael numbers.at n=7A262252