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A285882 Numbers which are twice a U(2,4) number but not the sum of two distinct U(2,4) numbers. 1

%I #14 May 07 2017 01:16:44

%S 4,188,192,388,408,1356,1424,4620,14892

%N Numbers which are twice a U(2,4) number but not the sum of two distinct U(2,4) numbers.

%C The sequence could also be described as numbers that have no representation as a sum of two distinct U(2,4) numbers, but have a "pseudo-representation" u + u, where u is in U(2,4).

%C a(10), if it exists, is larger than 10^8. - _Giovanni Resta_, May 02 2017

%e 188 is in the sequence since it can't be written as the sum of two distinct U(2,4) numbers A048951, but 188 = 94 + 94, where 94 is in U(2,4).

%Y Cf. A048951.

%K nonn,more

%O 1,1

%A _Enrique Navarrete_, Apr 27 2017

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Last modified August 18 23:41 EDT 2024. Contains 375284 sequences. (Running on oeis4.)