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Admirable oblong numbers.
0

%I #7 Dec 15 2017 17:36:53

%S 12,20,30,42,56,650,812,992,16256,67100672,17179738112,274877382656,

%T 1125625079263232,4611686016279904256

%N Admirable oblong numbers.

%C a(15) <= 18889393874090701094912. - Donovan Johnson, Jun 20 2011

%Y Cf. A002378, A111592.

%K more,nonn

%O 1,1

%A _Jason Earls_, Aug 30 2005

%E a(12)-a(13) from _Donovan Johnson_, Jul 15 2009

%E a(14) from _Donovan Johnson_, Jun 21 2011