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Smallest integer k such that k + x is an economical number for every x with 0 <= x <= n-1.
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%I #12 Mar 04 2018 23:41:36

%S 1,1,13,13,157,157,1169312,10990399,1016258233

%N Smallest integer k such that k + x is an economical number for every x with 0 <= x <= n-1.

%C The values of a(2)-a(10) are given in De Koninck, Luca, 2005.

%H J.-M. De Koninck and F. Luca, <a href="https://www.emis.de/journals/INTEGERS/papers/a5int2003/a5int2003.Abstract.html">On strings of consecutive economical numbers of arbitrary length</a>, Integers: Electronic Journal of Combinatorial Number Theory 5, (2005), #A5.

%Y Cf. A046759, A241034.

%K nonn,more

%O 2,3

%A _Felix Fröhlich_, Feb 07 2018