266851201domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumerators of continued fraction convergents to sqrt(231).at n=7A041430Numerators of continued fraction convergents to sqrt(924).at n=15A042786Primes of the form T_4(n), where T_4(x) = 8x^4 - 8x^2 + 1 is the fourth Chebyshev polynomial (of the first kind).at n=21A144131Prime numbersat n=14549232