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%I #4 Mar 11 2014 01:34:11
%S 66,2828,496496,812128,335336,858056,137328,230128,265176,191216,
%T 131128,144128,235976,141128,541328,108528,994776,335056,182536,
%U 407528,114216,598576,395336,931656,100376,811816,365456,144528,136528,131016,278128
%N Concatenation of first 3 digits and last 3 digits of n-th perfect number.
%H Omar E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica de los numeros primos y perfectos</a>.
%H Jan Munch Pedersen, <a href="http://amicable.homepage.dk/perfect.htm">Known Perfect Numbers</a> [From Steven Bi (chenhsi(AT)stanford.edu), Jan 13 2009]
%Y Cf. A000396, A104511, A138843, A138866.
%K base,nonn
%O 1,1
%A _Omar E. Pol_, Apr 02 2008
%E Added terms 15-33 and corrected 1 term Steven Bi (chenhsi(AT)stanford.edu), Jan 13 2009
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