Out of my own interest I've been practicing finding formula for for sequences and I've been having trouble finding one for the nth term for this sequence.
0,3,8,15,24 …
Clearly you add 5,7,9,11 … to the previous number but if anyone had some insight about how to express this in a formula that would be much appreciated.
Best Answer
Add $1$ to each term. Do you recognize it now?