有奖5000元求和

Nicolas2050

坐等王守恩的5000转账记录。

王守恩

有这样一串数:4, 8, 9, 16, 25, 27, 32, 36, 49, 64, 81, 100, 121, 125, 128, 144, 169, 196,...A001597

每个数-指数(较小者),取倒数相加:

1/2+1/5+1/7+1/14+1/23+24+1/27+1/34+1/47+1/62+1/79+1/98+1/119+1/122+1/121+...=\(\sqrt{2}\)  

王守恩

一串数:4, 8, 9, 16, 25, 27, 32, 36, 49, 64, 81, 100, 121, 125, 128, 144, 169, 196,..

求证: 1/3+1/7+1/8+1/15+1/24+1/26+1/31+1/35+1/48+1/63+1/80+1/99+1/120+...=1

https://www.maa.org/sites/defaul ... 2/Ford/bibiloni206.

还真有这么回事！！！