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The numbers 7^n-1 written in groups of three digits, with leading zeros omitted.
1

%I #6 Jun 23 2014 19:22:26

%S 648,342,240,16,806,117,648,823,542,576,480,40,353,606,282,475,248,

%T 197,732,674,213,841,287,200,968,890,104,66,782,230,728,484,747,561,

%U 509,942,332,329,305,696,2,326,305,139,872,61,628,413,597,910,448,113,988

%N The numbers 7^n-1 written in groups of three digits, with leading zeros omitted.

%e 6, 48, 342, 2400, 16806, 117648, ...

%Y Cf. A114645.

%K base,dumb,nonn

%O 1,1

%A _Jonathan Vos Post_, Feb 19 2006

%E Terms recomputed to use the definition equivalent to A114645 by _Alois P. Heinz_, Jun 23 2014