oh~ seems like I have to creat lot of conditions to solve, the last test is so funny!
"Wow this is a long sentence" lol (still trying...

It looks like $this->revTest(step(stepCount,fromNumber,endNumber), [101, 107]);
so although [101, 107] have 103 between , but this is the first pair between 100 and 110 with a 6-steps.

This is my personal view by seeing this topic....? I'm still trying to solve this..

+1 me 2

When you start with 1,1,1,1 the next numbers are 1+1+1+1 = 4, 1+1+1+4 = 7, ...
yep but why here is not 1+1+1+1+4=8 ? or it because "0"+0+0+0+1+1 = 2 is zero so didn't change?

Sorry I couldn't understand the rule
{0,0,0,0,1,1,2,4,8,16}
{1,1,1,1,4,7,13,25,49,94}

the one of it looks like add all the number to become next one
why the second just add some of it to grow??

so cool

it have two different sort in it..

can it use consle.log let you see on screen?? lol so smart . I usually debug by myself :"(