21313

Properties

Appears in sequences

• Number of graphical basis partitions of 2n.at n=31A001130
• A generalized partition function.at n=18A002600
• Number of irreducible positions of size n in Montreal solitaire.at n=9A007076
• Primes of form k^2 - 3.at n=27A028874
• Primes that are palindromic in base 12.at n=27A029979
• Primes of the form 666*n + 1.at n=10A037029
• Number of partitions satisfying cn(0,5) < cn(1,5) + cn(4,5) + cn(2,5) + cn(3,5).at n=36A039848
• Numbers k such that 201*2^k-1 is prime.at n=38A050852
• Primes at which the difference pattern X424Y (X and Y >= 6) occurs in A001223.at n=23A052166
• Primes such that the sum of the factorials of the digits is a perfect square.at n=37A052279
• Primes followed by a [4,2,4] prime difference pattern of A001223.at n=37A052378
• Primes p whose period of reciprocal equals (p-1)/9.at n=14A056214
• Class 6+ primes.at n=26A081634
• Main diagonal of number array A082105.at n=12A082106
• Primes of the form 128n+65.at n=39A105129
• Primes congruent to 24 mod 61.at n=38A142822
• a(n) = 576*n + 1.at n=36A158370
• Primes p such that 4*p and 6*p are each the sum of two consecutive primes.at n=30A164133
• Smallest prime p = p(n) ending with exactly n strings "13".at n=1A176183
• a(n) = smallest prime > a(n-1) such that a(n)+a(n-1) is multiple of k, a(1)=2, k=101.at n=32A178468