1222003domain: NPropertiesPrimalityPrimeyesAppears in sequencesTotal number of 1's digits in the first 10^n primes.at n=5A119292Constant term in the reduction of the polynomial x^(2*n) + x^n + 1 by x^3 -> x + 1. See Comments.at n=28A192812Prime numbersat n=94486