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A071138
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CONTINUANT transform of {sigma(n)}, 1, 3, 4, 7, 6, 12, ... (A000203).
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1, 4, 17, 123, 755, 9183, 74219, 1122468, 14666303, 265115922, 3196057367, 89754722198, 1259762168139, 30324046757534, 729036884348955, 22630467461575139, 408077451192701457, 15937651063976931962, 319161098730731340697, 13420703797754693241236, 429781682626880915060249
(list; graph; refs; listen; history; internal format)
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