9725506567domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(722).at n=17A042390Generalized Pellian with second term equal to 7.at n=25A048694Bisection (odd part) of Chebyshev sequence with Diophantine property.at n=12A077239Combined Diophantine Chebyshev sequences A077240 and A077239.at n=25A077242