Wiktionary
phr. (context idiomatic English) used to show that the number previously mentioned is continuously changing, i.e. increasing or decreasing
Usage examples of "and counting".
He roved up and down the dock, muttering and counting, telling over the piles of white and black stones he had collected and stowed in every pocket he owned.
Despite all the hours I have to spend adding up columns of figures and counting stacks of pennies, I'm still an Arum, and when the homs blow, my blood starts to race.
They'll be over on the Drop soon enough, and counting their little hearts out.
Instead he lay in the dark, staring up at the canopy and counting his ghosts.
All she could hear was Penari, alternately shouting insults at Rugen, encouragement to her, and counting to himself as he went through the steps of a quarterstaff drill in gleeful preparation for mayhem.
He surveyed the hillsides, whispering to himself and counting on his fingers, calculating their many needs.