[seqfan] A055498
Christopher Hohl
christopherhohl at yahoo.com
Fri Jul 9 04:32:59 CEST 2021
Hi everyone! I was just wondering if A055498 (a(0)=0, a(1)=1, a(n)= smallest prime >= a(n-1)+a(n-2)) is different from: a(0)=a(1)=1, a(n) = least k >= a(n-1)+a(n-2) such that gcd(k,a(n-1)+a(n-2))=1? That is, excluding a(0)=1. I can't go much higher than I have (by hand), but everything looks to be the same between the two sequences for small n. This is (of course) relatively meaningless, so if anyone cares to check for greater n, thank you in advance!
--Christopher Hohl
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