637699

Properties

Appears in sequences

• a(n) = Sum_{k <= n/2 } binomial(n-2k, 3k+1).at n=27A137357
• Primes which become squares when the digits are rotated once to the left.at n=29A234926
• Number of compositions of 5*n-2 into parts 3 and 5.at n=16A369847
• Primes p such that p + 10, p + 18, p + 24, p + 28 and p + 30 are also primes.at n=17A385824
• a(n) = Sum_{k=0..floor(2*n/3)} binomial(2*k+1,2*n-3*k).at n=20A392454
• Prime numbersat n=51922