75027

Appears in sequences

• Truncated cube numbers.at n=14A005912
• Pisot sequence L(4,5).at n=22A018910
• Pisot sequence L(7,10).at n=20A020743
• Pisot sequence L(5,7).at n=21A048584
• Numbers n such that 133*2^n-1 is prime.at n=17A050592
• Numbers k such that 5*10^k + 7*R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A056715
• a(n) = Fibonacci(4n+1) + 2, or Fibonacci(2n-1)*Lucas(2n+2).at n=6A081010
• a(n) = A113655(Fibonacci(n+1)).at n=24A102905
• Moebius transform of binomial(n+3, 4).at n=35A117109
• Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 6 ones in any 5 X 5 X 5 subtriangle.at n=8A153951
• a(n) = Fibonacci(n) + 2.at n=25A157725