What is the f'th term of -10, -25, -74, -175, -346, -605, -970?
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What is the k'th term of 412, 337, 260, 181, 100, 17, -68?
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What is the s'th term of 140, 136, 118, 80, 16, -80, -214?
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What is the x'th term of 25, -70, -323, -812, -1615, -2810, -4475, -6688?
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What is the u'th term of -168, -696, -1580, -2826, -4440, -6428?
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What is the i'th term of -109, -110, -121, -148, -197, -274, -385?
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What is the d'th term of 211, 224, 253, 304, 383?
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What is the s'th term of 286, 553, 820?
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What is the w'th term of 35, 36, 49, 80, 135, 220, 341, 504?
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What is the j'th term of 31100, 31099, 31098, 31097, 31096, 31095?
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What is the c'th term of 25, 75, 151, 265, 429, 655?
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What is the t'th term of 104, 82, 46, -10, -92, -206, -358?
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What is the s'th term of -3, -9, -1, 27, 81, 167, 291, 459?
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