4669921

Appears in sequences

• a(n) = A073145(n)^2.at n=23A073702
• Composite numbers n such that n | A072514 (n).at n=23A237878
• T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change (+-,+-) 0,0 1,2 or 1,0.at n=29A264003
• Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change (+-,+-) 0,0 1,2 or 1,0.at n=6A264005
• Numbers k such that concat(k, sigma(k)) and concat(sigma(k), k) are both prime.at n=16A284642