What is the i'th term of -15, -72, -191, -396, -711, -1160, -1767, -2556?
上一篇：
What is the d'th term of -843, -1686, -2531, -3378, -4227, -5078, -5931?
下一篇：
What is the q'th term of -17, -143, -493, -1181, -2321, -4027, -6413, -9593?
-
What is the d'th term of -843, -1686, -2531, -3378, -4227, -5078, -5931?
-
What is the l'th term of -586, -1203, -1820?
-
What is the y'th term of 39, 45, 49, 51, 51?
-
What is the q'th term of -17, -143, -493, -1181, -2321, -4027, -6413, -9593?
-
What is the u'th term of 25992, 25990, 25988, 25986?
-
What is the o'th term of -69, -271, -607, -1077, -1681, -2419, -3291?
一个美术生