Which sequences are arithmetic? Check all that apply.
1, 2, 3, 4, 5, . . .
1, 3, 5, 7, 9, . . .
1, 1, 2, 3, 5, 8, . . .
256, 64, 16, 4, 1, . . .
4, 7, 10, 13, 16, . . .