As the title suggests, A is arithmetic progression with a tolerance of 2, and B is geometric progression with a common ratio of 2.

Pay attention to the subscripts, A 1= 1, A2=3, and so on. The last requirement is

B1+B3+B5+B7+B9+B1+B13+B15+B17+B19.

That is, the first term is 1, and the common ratio is that the sum of the first 10 terms is 4.

choose one