按规律填空:6,24,60,120,210,,504,1,5,8,23,47,116,257,,
问题描述:
按规律填空:6,24,60,120,210,,504,1,5,8,23,47,116,257,,
答
2*2*2-2=63*3*3-3=244*4*4-4=605*5*5-5=1206*6*6-6=2107*7*7-7=3368*8*8-8=504所以 =336 6,24,60,120,210,336 ,504,(2)1,5,8,23,47,116,257,(605),(1376)1*3+5=8 5*3+8=23 8*3+23=47 23*3+47=11647*3+116=257116*3...