7728337domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumerators of convergents of the continued fraction with the n+1 partial quotients: [2;2,2,...(n 2's)...,2,n+1], starting with [1], [2;2], [2;2,3], [2;2,2,4], ...at n=15A088210Prime numbersat n=522687