JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><input id="start" type="text" /></li>
    <li><input class="auto" type="text" /></li>
    <li><input class="auto" type="text" /></li>
    <li><input class="auto" type="text" /></li>
    <li><input class="auto" type="text" /></li>
</ul>

JavaScript

$(document).ready(function() {
    
    $("#start").change(function() {
        
        // Get the value entered
        var value = new Number($(this).val());
        
        // Increment the other fields
        $(".auto").each(function() {
            value++;
            $(this).val(value);
        });
        
    });
    
});