Well, Sylvester (see footnote), or Euclid, whatever your name is, I think you get what I’m saying. Footnote: on rereading your message, the sequence 2,3,7,43,1

Well, Sylvester (see footnote), or Euclid, whatever your name is, I think you get what I’m saying. Footnote: on rereading your message, the sequence 2,3,7,43,1807 jumped out at me as being “Sylvester’s sequence” — sometimes called Euclid numbers — I definitely did not have to look that up in the online integer sequence database and simply know all these things intuitively.