id	title	challengeType	forumTopicId	dashedName
5900f41e1000cf542c50ff31	Problem 178: Step Numbers	5	301813	problem-178-step-numbers

--description--

Consider the number 45656.

It can be seen that each pair of consecutive digits of 45656 has a difference of one.

A number for which every pair of consecutive digits has a difference of one is called a step number.

A pandigital number contains every decimal digit from 0 to 9 at least once.

How many pandigital step numbers less than 1040 are there?

--hints--

euler178() should return 126461847755.

assert.strictEqual(euler178(), 126461847755);

function euler178() {

  return true;
}

euler178();

// solution required