Hello, I have recently published a new formula related to the mathematical constant ''e''. It is expressed as follows:
e = Sum[(2 k + 3)/((k+2)!), {k, 0, Infinity}]
To my knowledge, this particular representation has not yet been registered in the Wolfram formulas database.
A. G. Llorente, A Novel Simple Representation Series for Euler’s Number e, preprint, 2023.