¥Ñ piny ©ó ¬P´Á¤» ¤C¤ë 15, 2006 10:54 am
3
(0,0),(1,0),(1,-2),(-2,-2),(0,-1),(-2,3),(6,-10),(6,3)
4
¥Î¼Æ¾ÇÂk¯Çªk
n=1,¦¨¥ß
¥On=k®É,¦¨¥ß,§Y3k^5+5k^3+7k=15A,A¬°¥¿¾ã¼Æ
n=(k+1)®É,
3(k+1)^5+5(k+1)^3+7(k+1)
=15A+15k^4+30k^3+45k^2+30k+15
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