07

function solve(n) {
let html = '<table border="1">\n' + '<tr><th>x</th>';
    for (let firstRow = 1; firstRow <=n; firstRow++) {
        html += `<th>${firstRow}</th>`
    }

    html += '</tr>\n';
    for (let row = 1; row <=n; row++)
    {
        html += '<tr>'
        html += `<th>${row}</th>`
    for (let col = row; col <= (n*row); col+=row) {
        html += `<td>${col}</td>`;
        }
        html += '</tr>\n'
    }
html += '</table>'
return html;
}