[рони]

maternik,

var mas2 = [
        [1],
        [2],
        [3, 5, 7],
        [4],
        [],
        [6],
        [],
        [8],
        []
    ];
    var param = [1, 1, 1, 1, 1, 1, 1, 1, 1];
    var out = [];
    var N = param.length;
    for (var i = 0; i < N; i++) out[i] = recurs(i);
    alert(out);

    function recurs(i) {
        var f = param[i];
        if (mas2[i].length) {
            var Nc = mas2[i].length;
            for (var j = 0; j < Nc; j++) f += recurs(mas2[i][j])
        }
        return f
    }