297289728

Appears in sequences

• Member r=18 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=8A098303
• Numbers of the form 2^(2*p-3)*9*M_p^2, where p > 2 is a Mersenne exponent, A000043, and M_p is the corresponding Mersenne prime, A000668.at n=2A330841