What is the t'th term of -63, -65, -67, -69, -71?
-
What is the u'th term of -388, -756, -1124, -1492?
-
What is the d'th term of 1049, 1061, 1087, 1133, 1205, 1309?
-
What is the b'th term of 4, -1, -6, -11?
-
What is the x'th term of 263, 231, 199?
-
What is the o'th term of 18, -10, -78, -204, -406, -702, -1110?
-
What is the j'th term of -142, -171, -248, -397, -642, -1007?
一个美术生