What is the k'th term of 200, 203, 206, 209, 212, 215?
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What is the b'th term of 292, 574, 856?
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What is the k'th term of 71, 97, 135, 191, 271, 381, 527?
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What is the p'th term of 3, -24, -97, -240, -477?
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What is the o'th term of -1485, -2979, -4473?
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What is the c'th term of 169, 177, 199, 241, 309, 409?
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What is the o'th term of -36, -65, -94?
一个美术生