What is the a'th term of -31, -47, -97, -199, -371, -631, -997?
上一篇：
What is the x'th term of -65, -62, -59, -56, -53?
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What is the t'th term of -130, -197, -258, -313, -362, -405, -442?
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What is the m'th term of 54, 112, 170, 228?
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What is the d'th term of -58, -40, -10, 32, 86, 152, 230?
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What is the f'th term of 36, 44, 46, 36, 8?
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What is the c'th term of -14, -53, -120, -215, -338, -489?
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What is the o'th term of 1521, 1526, 1533, 1542, 1553?
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What is the p'th term of -440, -420, -378, -302, -180?
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What is the x'th term of -65, -62, -59, -56, -53?
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What is the x'th term of -116, -104, -84, -56, -20, 24?
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What is the t'th term of 61, 149, 271, 433, 641, 901, 1219, 1601?
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What is the t'th term of -130, -197, -258, -313, -362, -405, -442?
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What is the h'th term of -40, -76, -114, -154?
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What is the u'th term of 2387, 2385, 2381, 2375, 2367, 2357, 2345?
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