199399

Properties

Appears in sequences

• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=2, r=2, I={1}.at n=21A080014
• Primes which are the concatenation of a prime p and 2p+1.at n=14A168166
• Bijective base-9 representation of the sum of all numbers in bijective base-9 numeration with digit sum n.at n=5A332691
• Prime numbersat n=17933