61019domain: NAppears in sequencesIntegral quotients of partial sums of primes divided by the number of summations.at n=12A134125Strobogrammatic cyclops numbers.at n=9A153806Numbers that are the same upside down (using only digits 0, 1, 6 and 9).at n=33A169731Strobogrammatic nonpalindromic numbers.at n=31A287092