75180

Appears in sequences

• Numbers k such that phi(m) = 96*k+2 has no solution.at n=12A071624
• Amicable triples: numbers such that sigma(x) = sigma(y) = sigma(z) = x+y+z, x<y<z. We order these triples according to the common value of sigma. Sequence gives x numbers.at n=16A125490
• Number of ways to place 2 queens on an n X n chessboard so that they attack each other.at n=35A144945
• The Wiener index of the nanostar dendrimer D_1[n], defined pictorially in the Eslahchi et al. reference.at n=3A221050
• Number of length n+2 0..6 arrays with no consecutive three elements summing to more than 6.at n=5A241612
• Number of length 6+2 0..n arrays with no consecutive three elements summing to more than n.at n=5A241621
• Number of unlabeled strongly connected digraphs with n arcs.at n=11A350752