Palindromic-Type Squared Expressions with Palindromic and Non-Palindromic Sums - I

In the previous papers, the author worked with palindromic-type expressions. These expressions are by use of operations of addition and multiplications. When the operations are removed, we get normal even order palindromes. The previous works are limited to particular cases including patterns. The final sums are either palindromes or non-palindromes. The aim of this paper is to write palindromic-type squared expressions when final sums are either palindromes or non-palindromes. This work is up to 21 digits final sums. The higher digits shall be dealt elsewhere.