112463

Appears in sequences

• Absolute value of coefficient of X^2 in the characteristic polynomial of the n-th power of the matrix M = {{1,1,1,1,1}, {1,0,0,0,0}, {0,1,0,0,0}, {0,0,1,0,0}, {0,0,0,1,0}}.at n=28A123126
• Numbers n such that phi(n) = 3*phi(n+1).at n=16A256907