Implementing "Master Series" (msr) function in Wolfram Alpha

I’m studying the Master Numbers method from this paper:
Berezin, S. (2025). Master Numbers: Generalized Parametric Factorials. Zenodo. DOI 10.5281/zenodo.15655439

mstr(m;s;r;t) = ∏_{ j = 1 }^{ t - 1 }( m + st - rj )

msr(m;s;r;x) = m + x + ∑_{ t = 2 }^{ ∞ }( mstr(m;s;r;t) x^t / t! )

How to translate msr(m;s;r;x) into Wolfram Alpha syntax?

For example, if I need to get the square root of 100, I want to be able to simply enter:

msr(1; 0; -2; 99/200)

and obtain the result.

As in the article ‘MASTER-J: UNIVERSAL ANALYTICAL METHOD FOR SOLVING EQUATIONS AND ITS APPLICATIONS IN SCIENCE AND FINANCE’

Master_Numbers.pdf (386 KB)