function fn(n) {
for (var i = 0; i <= n; i++) {
var arr = [];
for (var j = 0; j <= i; j++) {
// console.log(i,j)
arr.push(combination(i, j))
}
console.log(arr)
}
}
function combination(m, n) {
if (n == 0) {
return 1;
} else if (m == n) {
return 1;
} else {
return combination(m - 1, n - 1) + combination(m - 1, n)
}
}
fn(5)