Wikipedia:Articles for deletion/Factoriangular number
The article cites five recent papers, but they are all by the same people — I would need to see papers from at least two independent research groups before I think there can be a plausible claim of having the multiple ''independent'' reliable sources requested by . In addition, and perhaps even more seriously, all five are (or maybe rather were, since the list is down) on Beall's list of predatory open access publishing|predatory open access publishers (APJMR as a standalone journal, IndJST from its publisher), so they are not reliable and we cannot use them as sources. That leaves only OEIS, and although I do consider OEIS reliable (any change there has to be reviewed by an editorial board) I don't think we should have articles whose only sourcing is from OEIS. And also note that OEIS omitted their "nice" tag, which they use for non-boring sequences
— User:David, 16:39, 22 January 2017 (UTC)
Stance: delete
Cited policy: WP:GNG (Wikipedia:Notability)