64829

Appears in sequences

• Numbers k such that k, k+2, k+4, k+6, k+8, k+10 are semiprimes.at n=27A092128
• a(n) = 169*n^2 - 140*n + 29.at n=19A156639
• Positive numbers y such that y^2 is of the form x^2+(x+439)^2 with integer x.at n=9A159890
• Numbers that can be written in more than 1 way as p^2 + 3pq + q^2 with primes p < q.at n=28A218795
• Number of (n+2)X(1+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011.at n=11A260760
• Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus two or minus 1.at n=14A269641
• Sequence of pairwise relatively prime numbers of class P_8 (see comment in A275246).at n=27A275253
• Smallest semiprime p1*p2 such that p2 mod p1 = n and no prime is used more than once in the sequence.at n=27A386256