69221

Properties

Appears in sequences

• Primes in A168472.at n=25A168473
• a(n) = Sum_{i=0..n/2}((binomial(2*i+1,i)*binomial(2*n+2,n-2*i))/(2*i+1)).at n=8A270560
• The first of three consecutive primes the sum of which is equal to the sum of three consecutive pentagonal numbers.at n=3A298251
• Prime numbers followed by two consecutive numbers which are products of four distinct primes (or tetraprimes).at n=26A362578
• Prime numbersat n=6874