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A144933 a(n) is the Mersenne number exponent for A144934(n). 1

%I #5 Mar 31 2012 10:28:53

%S 3,5,9,13,25,31,33,35,37,43,45,51,53,59,61,63,65,67,69,71,77,79,81,85,

%T 87,89,91,97,99,105,111,121,129,133,135,141,145,147,149,151,153,157,

%U 159,167,173,175,179,181,187,189,193,195,197,201,205,209

%N a(n) is the Mersenne number exponent for A144934(n).

%Y Cf. A000225, A017910, A144931, A144932, A144934

%K nonn

%O 1,1

%A _Reikku Kulon_, Sep 25 2008

%E 3, 5 prepended and more terms added by _Max Alekseyev_, Feb 17 2011

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Last modified September 7 11:06 EDT 2024. Contains 375730 sequences. (Running on oeis4.)