0,3,-3,9,-15,33·····的规律是什么

0,3,-3,9,-15,33·····的规律是什么 1 2 3 4 ·····7 ·······10 ········?1 3 5 7 ·····?······?··········290 1 4 9 ·····?······?··········? 0,1,3,6,10,15,21·········它们的规律是什么? 2011红领巾快乐数独答案一2·····4·9·631·4·8·8··97··3··3··2·95···95·86···15·3··7··9··47··5·7·3·182·3·4·····7二7·1·8·3·····413·6·2·6···4·8·8·5·1·2·61·····94·2·9·4·7·8· 如果3x＋9.8,那么15x减6等于（ ）·····打错了······················3x＋8等于9,那么15x减6等于（ ） 这几道奥数题谁会,求2014在哪一行那一列 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 20 19 18 17 16 求2014哪一行那一列 1 2 3 4 5 6 7 8 9 ···· ····· ·························· 用紧张,······················紧张,······················紧张,······················造句,内容是要积极向上的~3Q 1+2+3+4+5+6+7+8+9+1+11+12+13+14+15````````1+2+3+4+5+6+7+8+9+1+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28++29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50·································· 3·15的意思是···· 急·····················1+2+3+...+999=? 找出小正方形的个数与露在外面的数的变化规律小正方形的个数：1 2 3 4 ······（ ）······ n露在外面的面数：5 9 13 （ ） ······ 33 ······ （ ） 已知1+2+3+4+···+33=17*33计算1-3+2-6+3-9+4-12+····· x²-3x=0 ········ 将下列每个3*3正方形内的九格以及横竖九格均填入一至九的数字,且不重复.· 8 9 · 2 ··1··· 1 ··· 3······· 6 7········· 8 2·········5 ···· 7 ··············· 9 8 ····7 · 1 2 9 10 25 26 ··· 4 3 8 11 24 27 ··· 5 6 7 12 23 26··· 17 1816 15 14 13 22 29···1 2 9 10 25 26 ··· 4 3 8 11 24 27 ··· 5 6 7 12 23 26···16 15 14 13 22 29·· ·17 18 19 20 21 30···36 35 34 33 32 31··· · 将奇数按如下排列 1 5 7 19 21··· 3 9 17 23··· 11 15 25··· 13 27··· 29··· 2009在几排几 计算1-3+5-7+9-11+··········+97-99= 把自然数从1开始,排列成下表：1 2 4 7 11 16······ 3 5 8 12 17······ 6 9 13 18·····把自然数从1开始,排列成下表：1 2 4 7 11 16······3 5 8 12 17······6 9 13 18······10 14 19······15 20··