64891
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Prime numbers p of the form 10k+1 for which the pentanacci quintic polynomial x^5-x^4-x^3-x^2-x-1 modulus p is factorizable into five binomials.at n=11A135843
- Prime numbers p such that p +- ((p-1)/7) are primes.at n=28A137770
- In this sequence each prime ends a prime century. Place a 0 between the final two digits, and raise the 100s digit by 1, to form the first prime of the next century.at n=6A156083
- Primes of the form 6*k^2 - 5.at n=30A201791
- The smallest of four consecutive primes with prime gaps {a,b,c} = {10,18,2}.at n=9A215719
- Number of (n+2) X (3+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=5A259957
- Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=2A259960
- T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=30A259962
- T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001.at n=33A259962
- Balanced primes of order thirteen.at n=19A300364
- Primes containing nonprime digits (from 1 to 9) in their decimal expansion and whose digits are distinct, i.e., consisting of only digits 1, 4, 6, 8, 9.at n=28A323391
- Prime numbersat n=6485