ytzGk3yƁz (1000)

fˆꗗɖ߂ Xbhꗗɖ߂

807 - ρ[I (sage) 2015/11/21(y) 19:04:37 ID:DrY2wq0w

>>802
((((3+37)/2)*(((5+37)/2))^(n-1))- (((3-37)/2)*(((5-37)/2))^(n-1)))/(37)