[seqfan] relation A091440 to A167348

Richard Mathar mathar at strw.leidenuniv.nl
Thu Sep 3 15:24:37 CEST 2009


I see that the sequences A091440 and A167348
differ at n=1, because the PARI program in A167348 does not
define primorials smaller than 2, wheras A091440 makes it
very clear what its definition of primorials are. I cannot find
the alternative where p# >= 2 in the OEIS. Does this mean 
that A167348 is just an erroneous version of A091440? 

http://research.att.com/~njas/sequences/?q=id:A167348|id:A091440
2,2,3,7,13,23,43,79,149,257,461,821,1451,2549,4483,7879,13859,24247,42683,75037,131707,230773,405401,710569,1246379,2185021,3831913,
1,2,3,7,13,23,43,79,149,257,461,821,1451,2549,4483,7879,13859,24247,42683,75037,131707,230773,405401,710569,1246379,2185021,3831913,6720059,11781551,20657677,36221753,63503639,111333529,195199289,

RJM





More information about the SeqFan mailing list