29910

Appears in sequences

• Numbers n such that phi(n)=4*reversal(n).at n=12A114931
• Number of genus 3 sensed hypermaps with n darts.at n=8A214820
• Number of (3+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.at n=12A253700
• Numbers m such that each of p=6*m+1, q=6*p+1, r=6*q+1 and s=6*r+1 is prime.at n=33A263311
• Number of dessins d'enfants D(n,g) with n edges of genus g, read by rows.at n=23A380453
• Number of mutual-visibility sets in the n-ladder graph.at n=19A389183