[seqfan] list of all non-prime coprimes of the full set of primorial numbers
jmorken at shaw.ca
Thu Apr 20 13:14:22 CEST 2017
Here is a sequence I added as a draft: https://oeis.org/draft/A285510
It is a list of all non-prime coprimes of the full set of primorial numbers.
Pn(2) has 1 coprime: 1
Pn(6) has 2 coprimes: 1,5
Pn(30) has 8 coprimes: 1,7,11,13,17,19,23,29
Pn(210) has 48 coprimes: etc..
The sequence is a complete list of all non-prime coprimes for all Pn. The sequence starts:
Only large n values in the sequence will change when larger Pn are added to the set, values up to an increasingly
large n will not change as larger Pn are added.
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