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A024398
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a(n) = [ (2nd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+1 positive integers congruent to 2 mod 3}.
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0
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0, 1, 4, 8, 14, 22, 31, 41, 53, 67, 82, 98, 116, 136, 157, 179, 203, 229, 256, 284, 314, 346, 379, 413, 449, 487, 526, 566, 608, 652, 697, 743, 791, 841, 892, 944, 998, 1054, 1111, 1169, 1229, 1291, 1354, 1418, 1484
(list; graph; refs; listen; history; internal format)
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