References: Triangular Numbers and Running Expressions with Equalities; Pyramidical-Type Representations of Natural Numbers.

References: Number Patterns: Single Letter Representations; Crazy Representations of Natural Numbers – The 10958 Problem

References: Digit’s Order Selfie Numbers: Factorial and Square-Root; Crazy Representations of Natural Numbers – The 10958 Problem

References: Fibonacci Sequence and Running Expressions with Equalities; Triangular Numbers and Running Expressions with Equalities; Crazy Representations of Natural Numbers – The 10958 Problem

References: Fibonacci Sequence and Selfie Numbers Triangular Selfie Numbers Crazy Representations of Natural Numbers – The 10958 Problem

References: Patterns in Prime Numbers: Fixed Digits Repetitions; Crazy Representations of Natural Numbers – The 10958 Problem

References Triangular Numbers and Running Expressions with Equalities; Pyramidical-Type Representations of Natural Numbers;