[seqfan] A151764 -- circular definition?

Hagen von EItzen math at von-eitzen.de
Tue Jun 23 19:48:20 CEST 2009

Could it be that the definition of A151764 should rather read
    "a(n) = f(f(n)), where f(n) = A071786(n)"
(the given definition circularly uses A151764 itself)?
I infer this from  A071786(A071786(19)) = A071786(91) = 217.


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