10097920

Appears in sequences

• q(n) = sigma(n) - n, where q(n) = n + e(n) + e(n-e(n)) and e(n) = n - eulerphi(n).at n=7A063935
• Number of 4 X n 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=25A224148