Simultaneous Representations of Selfie Numbers in Terms of Fibonacci and Triangular Numbers

Numbers represented by their own digits by certain operations are considered as selfie numbers. There are many ways of representing selfie numbers. It can be represented in digit's order, reverse order of digits, increasing and/or decreasing order of digits, etc. These can be obtained by use of basis operations along with factorial, square-root, Fibonacci sequence, Triangular numbers, etc. In this work, we have written selfie numbers in such a way that these are simultaneously equal by use of Fibonacci sequence as well as Triangular numbers. This is done by use of basic operations along with factorial and/or square-root.