|
%I #5 Jan 22 2022 19:14:21
%S 2,3,57,63,64,83,85,91,98,133,141,145,149,154,156,187,189,232,247,249,
%T 255,263,279,281,293,310,319,415,419,425,467,512,575,589,593,653,791,
%U 799,813,837,839,970,1019,1103,1113,1145,1247,1259,1427,2183,2223
%N Numbers k such that k + sigma(k) + sigma(sigma(k)) is a brilliant number (A078972).
%e 1103 is in the sequence since 1103 + sigma(1103) + sigma(sigma(1103)) = 71*73 (a brilliant number).
%Y Cf. A078972 (brilliant numbers), A116051.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 13 2006
|
