Incrementing a literal

Is there a pattern for incrementing a literal counter?

Alice stores turtle in http://example.org/counter

The initial operation should generate something like

<#> <#counter> 1.

Then the subsequent operation

<#> <#counter> 2.

And after that.

<#> <#counter> 3.

And so on ...

Is there a neat way to do this in  distributed way?  SPARQL update?   Maybe
using Etags?