28411

Properties

Appears in sequences

• Number of primitive (aperiodic) palindromic structures using exactly three different symbols.at n=21A056482
• Primes p such that (3^p - 3^((p + 1)/2) + 1)/7 is prime.at n=8A125743
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 10 : primes in A146335.at n=18A146355
• Primes p of the form : p+p^2+p^3-+4=prime.at n=10A154822
• a(n) = 81*n^2 - 44*n + 6.at n=19A156676
• Numbers n such that the Eisenstein integer ((1-ω)^n+1)/(2-ω) has prime norm, where ω = - 1/2 + sqrt(-3)/2.at n=19A239842
• Odd numbers n such that the sum of the binary digits of n and n^2 both equal 12.at n=33A261593
• Triangle read by rows: T(m,n) is the label of the largest square that an (m,n)-leaper (a generalization of a chess knight) reaches before it can no longer move, starting on a board with squares spirally numbered, starting at 1; 1 <= n < m. Each move is to the lowest-numbered unvisited square.at n=12A306197
• Inverse Weigh transform of n^2.at n=19A316150
• Primes whose binary complement (A035327) is a square.at n=40A323067
• Primes dividing nonzero terms in A002065.at n=32A328704
• Prime terms of A338820.at n=13A338102
• Discriminants of imaginary quadratic fields with class number 35 (negated).at n=36A351673
• Primes in A374965 sorted into increasing order.at n=46A373804
• Prime numbersat n=3092