Begin with 5, multiply each digit by 2, keeping the memory of the groupings of the preceding digits.

A102260

Begin with 5, multiply each digit by 2, keeping the memory of the groupings of the preceding digits.

Terms

    a(0) =5a(1) =10a(2) =20a(3) =40a(4) =80a(5) =160a(6) =2120a(7) =4240a(8) =8480a(9) =168160a(10) =212162120a(11) =4242124240a(12) =8484248480

External references