71951domain: NAppears in sequencesNumbers n such that 6*10^n+7 is prime.at n=22A103026Sum of all parts minus the total number of parts of the last section of the set of partitions of n.at n=34A207035Numbers k such that sum(d|k, sigma(d)^2/d) is an integer, where d are the divisors of k.at n=5A226564