What is the r'th term of 21, 64, 145, 282, 493?
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What is the l'th term of 8, -5, -18?
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What is the f'th term of -53, -56, -73, -110, -173, -268?
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What is the n'th term of -2300, -4602, -6904, -9206?
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What is the n'th term of 81, 136, 183, 216, 229, 216?
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What is the v'th term of -178, -352, -526?
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What is the b'th term of 3, -7, -25, -51?
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What is the d'th term of 4966, 9933, 14900, 19867, 24834, 29801?
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What is the g'th term of -72, -116, -170, -240, -332, -452, -606?
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What is the t'th term of 7, 7, -15, -71, -173, -333?
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What is the m'th term of -138, -497, -1096, -1935, -3014?
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What is the c'th term of -35, -24, -7, 16, 45?
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What is the f'th term of -12, -21, -30, -39?
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