333648

Appears in sequences

• T(n,m) = Sum_{j=0..m} (-1)^(j + m)*(j + 1)^n*binomial(m, j) + Sum_{j=0..(n-m)} (-1)^(j - m + n )*(1 + j)^n*binomial(n-m, j).at n=40A156820
• a(n) = Sum_{i=1..n} 2^phi(i), where phi=A000010.at n=18A385147