The series looks like an arithmetic progression with common difference of 1, combined with a fibonacci recursive formula. Found javascript code for fibonacci recursion. More study needed.
- Brian

The Progression should have a base of 11, and a Factor of 1.
Going to work, no time to study now.
- Brian

Javascript code:
https://www.geeksforgeeks.org/program-for-nth-fibonacci-number/

The nth term of an arithmetic sequence
https://www.alamo.edu/contentassets/afe30946fa58450c89840c1173f3b9d0/sequences/math1314-arithmetic-sequences.pdf

Maybe this can help



Left Click on the Title of the Math node for obtain Edit Properties!

Thank you for your detailed reply.

I think I gave a too regular examples. If the sequence is {1,8,20,b,c,... }, becomes {1,9,29,29+b,29+b+c,... }.

The point of the question is, I didn't use the loop node correctly or the loop node has bug.

Thank you for your detailed reply.

But the sequence I want to generate is not limited to 5 or 8 numbers, and I hope to calculate more numbers.

I think maybe I didn't use the loop node correctly, or the loop node has bug.

When I'm dealing with objects or vectors, the loop node works correctly.

Hi all.

Try this.

https://disk.yandex.ru/d/TxQgdTTMVRMs2g



C:\Users\User\AppData\Roaming\Moi\nodeeditor\nodes\extensions

Copy the file to this location using the link. This is for Windows.

That's great. Thanks for sharing.

This is the node I really want.

Very compact! Excellent!