146601550370domain: NAppears in sequencesDecimal form of the binary numbers 10, 100010, 1000100010, 10001000100010, 100010001000100010,...at n=9A098704a(0)=0, a(n)=4a(n-1)+2 for n odd, a(n)=4a(n-1) for n even.at n=19A117616