21599190901domain: NAppears in sequencesNumbers k such that k+0, k+1, ... and k+7 are, in some order, 1 * a prime, 2 * a prime, ... and 8 * a prime.at n=10A071370Numbers k such that tau(k) + ... + tau(k+7) = 40, where tau is the number of divisors function A000005.at n=17A350854