148220domain: NAppears in sequencesAbsolute value of difference between counts of uninterrupted runs of 2 nonprimes in A093185 and A093186.at n=12A093398Numbers k such that k divides 1 plus the sum of the first k primes.at n=17A128165a(n) = Sum_{k=1..n} k^2*tau_3(k), where tau_3 is A007425.at n=32A319088