66137

Properties

Appears in sequences

• Unimodal analog of Fibonacci numbers: a(n+1) = Sum_{k=0..floor(n/2)} A071922(n-k,k).at n=19A072176
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=4, I={0,2}.at n=38A079974
• Primes p of Erdos-Selfridge class 5+ with largest prime factor of p+1 not of class 4+.at n=10A129473
• Prime numbers with gaps larger than 20 towards both neighboring primes.at n=33A163112
• Prime numbers containing the digit string 137.at n=31A190307
• a(n) is the smallest odd prime p that has exactly n consecutive distinct prime "prime gaps" between p and a larger prime.at n=7A300556
• Prime numbersat n=6603