Aronson’s Sequence
June 22, 2021
Aronson’s sequence 1, 4, 11, 16, 24, 29, 33, 35, 39, … (A005224) is an infinite self-referential sequence defined as:
T is the first, fourth, eleventh, … letter in this sentence.
Your task is to write a program that generates Aronson’s sequence and use it to compute the first hundred members of the sequence. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.
Programming Praxis 
In Common Lisp: https://ideone.com/39TR8W