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A019310
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Number of words of length n (n >= 1) over a two-letter alphabet having a minimal period of size n-1.
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0
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0, 2, 2, 6, 10, 22, 38, 82, 154, 318, 614, 1250, 2462, 4962, 9842, 19766, 39378, 78910, 157502, 315322, 630030, 1260674, 2520098, 5041446, 10080430, 20163322, 40321682, 80648326, 161286810, 322583462, 645147158, 1290314082, 2580588786, 5161216950
(list; graph; refs; listen; history; internal format)
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