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%I #5 Jul 15 2021 21:25:11
%S 7,17,50,71,93,117,149,187,201,217,221,247,256,263,265,327,329,371,
%T 381,383,385,389,392,401,403,413,427,449,461,485,497,503,515,525,533,
%U 543,569,605,623,635,649,667,685,701,723,763,803,821,831,835,837,839
%N Numbers k such that k + sigma(k) is a brilliant number (A078972).
%e sigma(117) + 117 = 299 = 13*23.
%Y Cf. A078972, A115916.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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