A039787 and A049091 are duplicates

Lambert Klasen Lambert.Klasen at gmx.net
Thu Jul 14 12:09:46 CEST 2005

dear seqfans,

there are A039787: phi(a(n)) is equal to the square-free kernel of (a(n)-1)
and A049091: Primes p such that p-1 is square-free.

since 1 is in A007947 (the square-free kernel of n)
prepend 2 to A039787 and both seqences are identical, aren't they?

best regards

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