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#1
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2 0 3 10 26 µÑǵèÍ令×Í....
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#2
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#3
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⨷ÂìẺ¹ÕéÁѹµÒ´Õä´éµÒÃéÒÂàÊÕ¤ÃѺ ¤×͵éͧà´Ò㨤¹Í͡⨷Âì ¶éÒãËé¼ÁµÍºÍÂèÒ§¤¹ËÑÇËÁͤ×Ͷ١·Ø¡¢éÍ Åͧ´ÙÇèÒ·ÓäÁ¹Ð¤ÃѺ
¢éÍ ¡ ¼ÁãªéÊٵùÕé¤Ó¹Ç³ $$2n-4\Big[\dfrac{n}{2}\Big]+\Big[\dfrac{n}{3}\Big]+9\Big[\dfrac{n}{4}\Big]+14\Big[\dfrac{n}{5}\Big]+11\Big[\dfrac{n}{6}\Big]$$ ¨Ðä´é $6$ µÑÇáá¤×Í $2,0,3,10,26,36$ ¢éÍ ¢ ¼ÁãªéÊٵùÕé¤Ó¹Ç³ $$2n-4\Big[\dfrac{n}{2}\Big]+\Big[\dfrac{n}{3}\Big]+9\Big[\dfrac{n}{4}\Big]+14\Big[\dfrac{n}{5}\Big]+14\Big[\dfrac{n}{6}\Big]$$ ¨Ðä´é $6$ µÑÇáá¤×Í $2,0,3,10,26,39$ ¢éÍ ¤ ¼ÁãªéÊٵùÕé¤Ó¹Ç³ $$2n-4\Big[\dfrac{n}{2}\Big]+\Big[\dfrac{n}{3}\Big]+9\Big[\dfrac{n}{4}\Big]+14\Big[\dfrac{n}{5}\Big]+47\Big[\dfrac{n}{6}\Big]$$ ¨Ðä´é $6$ µÑÇáá¤×Í $2,0,3,10,26,72$ ¢éÍ § ¼ÁãªéÊٵùÕé¤Ó¹Ç³ $$2n-4\Big[\dfrac{n}{2}\Big]+\Big[\dfrac{n}{3}\Big]+9\Big[\dfrac{n}{4}\Big]+14\Big[\dfrac{n}{5}\Big]+53\Big[\dfrac{n}{6}\Big]$$ ¨Ðä´é $6$ µÑÇáá¤×Í $2,0,3,10,26,78$ ÊÃØ»Çèҵͺ¢éÍä˹´Õ¤ÃѺ
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site:mathcenter.net ¤Ó¤é¹ |
#4
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#6
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$a_n=c_1n+c_2\big[\dfrac{n}{2}\Big]+c_3\Big[\dfrac{n}{3}\Big]+\cdots$ ¨Ò¡¹Ñ鹡çá·¹¤èÒ $n=1,2,3,...$ à¾×èÍËÒ¤èÒ $c_1,c_2,...$ Åͧ·Ó´Ù¤ÃѺ äÁèÂÒ¡ÍÂèÒ§·Õè¤Ô´
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site:mathcenter.net ¤Ó¤é¹ |
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