%N Decimal expansion of (69^2)*10^6 + 69^3.
%C There is (probably) no simpler arithmetic expression whose value consists of 10 distinct digits.
%C In the absence of some clarification as to how the "simplicity" of an arithmetic expression is to be measured, it could be argued that other expressions yielding pandigital numbers (e.g., (10^11 - 910)/81, which gives 1234567890) are at least as simple as the one that defines this sequence. - _Jon E. Schoenfield_, Oct 05 2019
%t IntegerDigits[69^2 10^6+69^3] (* _Harvey P. Dale_, Jan 18 2012 *)
%o (PARI) 4761328509 \\ _Charles R Greathouse IV_, Jan 18 2012
%Y Cf. A050278.
%A Fernando Antonio de Oliveira Prieto (fernandoaoprieto(AT)hotmail.com), Feb 18 2010