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A114488
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Number of decimal digits in (10^n)!!.
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0
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1, 4, 80, 1285, 17831, 228289, 2782857, 32828532, 378285281, 4282852764, 47828527596, 528285275911, 5782852759055, 62828527590491, 678285275904845, 7282852759048382, 77828527590483750
(list; graph; refs; listen; history; internal format)
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