[seqfan] Numbers n such that phi(n)/phi(phi(n)) > phi(m)/phi(phi(m)) for all m < n.

[David Corneth]

Hi all,

About A289125 again,
Assuming omega(a(n)) <= 2 and 2310|phi(a(n)) for n >= 7 and phi(a(n)) is
(prime(24) = 89)-smooth

I get

1, 3, 7, 31, 211, 2311, 43891, 60653, 870871, 1023053, 13123111, 19417793,
300690391, 446235509, 6915878971, 12939711677, 200560490131,
11406069164491, 12234189897931, 14841484883609, 386480064480511,
608500576478849, 18826412648012971, 26165522997357677, 693386350578511591,
1229779567395958169, 37508276737897976011, 65178316970529225209.

Shall I put them to A289125?
Is there more to say about gcd(phi(a(n)), phi(a(n+1)))?

Best,
David

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