±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 687  |  »Ø¸´: 2

yiluwangxi

ľ³æ (ÖøÃûдÊÖ)

[ÇóÖú] ÇóÊýÁеľßÌå±í´ïʽ

a(0)=0;a(1)=1;a(2)=2;   2n=a(n+1)-a(n-1)
ÄÄλÃËÓÑÖªµÀa(n)µÄ¾ßÌå±í´ïʽ£¿Â鷳˵Ï¡£
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zbdfwq5777

ľ³æÖ®Íõ (ÎÄѧ̩¶·)

ÖÁ×ðɽÑò

ÎÄÏ׽ܳö¹±Ï×

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
yiluwangxi: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-04-15 16:29:16
¿ÉÄÜÊÇÕâÑù£º
a(n)=(n^2+(1-(-1)^n)/2)/2¡£
»òÕß˵£º
a(n)=(n^2)/2£¬nÊÇżÊý£»
a(n)=(n^2+1)/2£¬nÊÇÆæÊý¡£
2Â¥2012-04-15 16:17:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiaoqing8569

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

°ÂÁÖÆ¥ÑǹâѧԺԺ³¤

3Â¥2012-04-16 09:31:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ yiluwangxi µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085600 295·ÖÇóµ÷¼Á +17 W55j 2026-03-30 21/1050 2026-04-03 01:10 by BruceLiu320
[¿¼ÑÐ] 271·ÖÇóµ÷¼ÁѧУ +3 zph158488£¡ 2026-04-02 3/150 2026-04-03 00:01 by wwytracy
[¿¼ÑÐ] Çóµ÷¼Á +11 ÕÅzz111 2026-03-27 12/600 2026-04-02 22:47 by JourneyLucky
[¿¼ÑÐ] 085600µ÷¼Á +3 1amJJ 2026-04-02 3/150 2026-04-02 22:00 by ¿ÆÑÐСר¼Ò
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼²ÄÁÏ¿ÆÑ§Ó빤³Ì288·Ö£¬Çóµ÷¼Á +14 Êdz½°¡ 2026-04-02 14/700 2026-04-02 21:10 by dongzh2009
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +10 Ò»ÑùYWY 2026-04-02 10/500 2026-04-02 20:58 by dongzh2009
[¿¼ÑÐ] 321Çóµ÷¼Á +12 y-yh 2026-04-01 14/700 2026-04-02 19:34 by ÅÁ¶ûÂíÀ­ÌØ
[ÂÛÎÄͶ¸å] chinese chemical lettersÓ¢ÎİæÍ¶¸åÇóÖú 120+4 Yishengeryi 2026-03-30 6/300 2026-04-02 17:19 by Yishengeryi
[¿¼ÑÐ] 285Çóµ÷¼Á +14 AZMK 2026-04-02 14/700 2026-04-02 15:54 by ÉϾÅÌìÀ¿Ô£¨ºÃÔ
[¿¼ÑÐ] Ò»Ö¾Ô¸085600ÖпÆÔºÄþ²¨Ëù276·ÖÇóµ÷¼Á +26 ²ÄÁÏѧ257Çóµ÷¼Á 2026-03-28 27/1350 2026-04-02 15:15 by chyhaha
[¿¼ÑÐ] 282Çóµ÷¼Á +13 ºôÎü¶¼ÊǼõ·Ê 2026-04-01 13/650 2026-04-02 14:10 by baoball
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +12 Ò»ÑùYWY 2026-04-01 12/600 2026-04-02 00:21 by °ÙÃë¹âÄê
[¿¼ÑÐ] 296Çóµ÷¼Á +4 Íô£¡£¿£¡ 2026-03-31 7/350 2026-04-01 22:04 by ¿Í¶ûÃÀµÂ
[¿¼ÑÐ] °²È«¹¤³Ì 285 Çóµ÷¼Á +3 Xinyu56 2026-04-01 4/200 2026-04-01 21:50 by ¾²¾²¾²¾²¾²¾²¾²¾
[¿¼ÑÐ] Çóµ÷¼Á0703 +5 ÖܼÎÒ¢ 2026-03-31 8/400 2026-04-01 20:32 by ltltkkk
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤µ÷¼ÁÒ»Ö¾Ô¸´óÁ¬º£ÊÂ085600£¬349 +9 ³ÔµÄ²»ÉÙ 2026-03-30 9/450 2026-04-01 11:24 by wangjy2002
[¿¼ÑÐ] ¹þ¶û±õ¹¤Òµ´óѧ²ÄÁÏÓ뻯¹¤×¨Ë¶378Çóµ÷¼Á +3 Ëþ±ÈÎÚ˹ 2026-03-30 3/150 2026-03-30 22:55 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 298Çóµ÷¼Á +3 ÖÖÊ¥´Í 2026-03-29 3/150 2026-03-29 12:06 by longlotian
[¿¼ÑÐ] 086000ÉúÎïÓëÒ½Ò©µ÷¼Á +5 Feisty¡£ 2026-03-28 9/450 2026-03-29 12:02 by longlotian
[¿¼ÑÐ] Ò»Ö¾Ô¸¼ª´ó071010£¬316·ÖÇóµ÷¼Á +3 xgbiknn 2026-03-27 3/150 2026-03-27 10:36 by guoweigw
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û