function sequence(iteratee, start, stop, step) {
if (stop == null) {
stop = start || 0;
start = 0;
}
if (!step) {
step = stop < start ? -1 : 1;
}
var rest = (stop - start) % step;
stop += (rest && step - rest);
for ( ; start != stop ; start += step) if (iteratee(start)) return start;
}
module.exports = sequence;