12-18 even

In Exercises 5-14, write the first six terms of the sequence. (See Example 1.) 5. amn+2 6. a =6-n 7. a =n 8. f(n) = 13 + 2 9. f(n) = 40 -1 10. a = -n2 11. a = n2 - 5 12. a = (n + 3)2 13. f(n) = 2n 14. f() = n+ 2 27 - 1 In Exercises 15-26, describe the pattern, write the next term, and write a rule for the ath term of the sequence. (See Example 2.) 15. 1, 6, 11, 16. . . . 16. 1, 2, 4, 8, ... 17. 3.1, 3.8, 4.5, 5.2, . . . 18. 9, 16.8, 24.6, 324