What are palindrome​ ,Armstrong , Fibonacci numbers in C programming??

Question

And from where can we study more about them??

Answer 1

A palindrome number is a number that is exactly the same number when written backwards.

http://www.programmingsimplified.com/c/source-code/c-program-palindrome-number

Example: 12021

An Armstrong number is when the number's individual numbers are equal to a power:

https://www.programiz.com/c-programming/examples/check-armstrong-number

Example: 371 = 3*3*3 + 7*7*7 + 1*1*1

A Fibonacci number is a row of numbers that increases by adding the previous two numbers with : Tn = T(n-1) + T(n-2)

https://www.programiz.com/c-programming/examples/fibonacci-series

Example: 1,1,2,3,5,8,13,21,35