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%I #9 Jul 18 2021 02:55:02
%S 8871,9008,83352839,99000098,329767122285,670232877710,738226276370,
%T 933006600338,999000000998,3779410975143112,3872816717528064,
%U 4250291784692547,4278630943941864,4372036686326816,4749511753491299
%N Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-7.
%e 99000098 * 99000104 = 98010199//98010192, where // denotes concatenation.
%Y Cf. A115426, A116237, A116241, A116243, A116256.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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