What is the r'th term of 42, 170, 384, 684, 1070, 1542?
上一篇：
What is the d'th term of 7, 3, -13, -47, -105, -193, -317, -483?
下一篇：
What is the b'th term of -1, -86, -227, -424?
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What is the n'th term of 16, 27, 36, 43, 48, 51, 52?
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What is the f'th term of 16441, 16440, 16439, 16438, 16437?
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What is the x'th term of -239, -246, -251, -254?
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What is the i'th term of 5, 8, 7, -4, -31?
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What is the y'th term of -24, -50, -74, -96?
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What is the c'th term of 21, 47, 111, 231, 425, 711, 1107?
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What is the d'th term of 7, 3, -13, -47, -105, -193, -317, -483?
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What is the w'th term of -71, -150, -231, -314, -399, -486, -575?
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What is the b'th term of -201, -158, -117, -78, -41, -6?
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What is the b'th term of -1, -86, -227, -424?
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What is the o'th term of -9, -24, -79, -198, -405?
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What is the n'th term of 95, 94, 93, 92?
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