25714875domain: NAppears in sequencesA Fielder sequence.at n=27A001643a(n) = a(n-1) + a(n-2) + a(n-3), a(0)=3, a(1)=1, a(2)=3.at n=28A001644Sequences A001644 and A000073 interleaved.at n=28A075676Number of total dominating sets in the n-Moebius ladder.at n=13A295420