Thanks to both of you for the solutions! Best
Eric> On Tuesday, 13 Oct 2015 at 17:35, michael.zom...@googlemail.com wrote:
Eric> [...]
>> After reading a related SO question I tried the formula
>>
>> #+TBLFM: @<<<..>$2=@<<..>>$2+2*$3
Eric> This worked for me:
Eric> #+TBLFM: @<<<$2..@>$2=@-1+2*@-1$+1
Eric> HTH, eric -- : Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.2, Org
Eric> release_8.3.2-161-gd2ac25
