168473555869domain: NAppears in sequencesNumbers in a perpendicular plane intersecting a 3D clockwise spiral produced by powers of 2.at n=15A124793a(n+5) = a(n+4)+a(n+3)+a(n+2)+a(n+1)+2*a(n) with a(0)=2, a(1)=1, a(2)=5, a(3)=10, a(4)=20.at n=37A226311