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A128812
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a(n)=(1+2^(1/3))^n.
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0
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1, 2, 5, 12, 26, 59, 133, 301, 680, 1538, 3475, 7853, 17747, 40106, 90637, 204833, 462905, 1046130, 2364171, 5342839, 12074394, 27287177, 61666867, 139362250, 314947683, 711756898, 1608514395, 3635115540, 8215074129
(list; graph; refs; listen; history; internal format)
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