User blog comment:MilkyWay90/Help with understanding Veblen array notation/@comment-30754445-20180811202716/@comment-31966679-20180816025101

In my other blog post about learning other ordinal notation, somebody redirected me to this definition of the multi-parameter/argument version of the Veblen function. Can you please give me a link or definition to the more commonly used version of the multiparameter version of the Veblen function?