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%I #8 Feb 14 2021 04:44:56
%S 13199998,117463825,513199998,1111111110
%N Numbers k such that k is a term of A014778, but k-1 and k+1 are not.
%D M. Protat, Des Olympiades a l'Agregation, Nombre de "1", Problem 89, pp. 182-183, Ellipses, Paris 1997.
%Y Cf. A014778.
%Y Cf. A094798, A094799, A094800.
%K base,easy,fini,full,nonn
%O 1,1
%A _Lekraj Beedassy_, Jun 11 2004
%E Corrected by _David Wasserman_, Jun 29 2007
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