# Fibonacci series program

**URL:** <https://forum.kirupa.com/t/fibonacci-series-program/659602>\
**Category:** Uncategorized\
**Created:** [June 24, 2023, 12:41pm UTC](https://forum.kirupa.com/t/fibonacci-series-program/659602 "2023-06-24T12:41:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![polaryeti](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/polaryeti/32/19283_2.png) [@polaryeti](https://forum.kirupa.com/u/polaryeti)\
**Post date:** [June 24, 2023, 12:41pm UTC](https://forum.kirupa.com/t/fibonacci-series-program/659602/1 "2023-06-24T12:41:53Z")

</div>

![image](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/8/c/8cdf137d986c86d216bbf2909ec06b909fb6ad90.png)

Is the problem solved by this program(I’m not looping until user wants to enter the value knowingly…)?

```auto
//Input initial size of green crud population and number of days
//Output to find pounds of green crud after that many days
let no_of_days = 25;
let initial_size = 10;
let a = [initial_size, initial_size];
for (i = 0; i < no_of_days / 5; i++) {
  a[i + 2] = a[i] + a[i + 1];
}
console.log(a);

```