The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #11 Aug 06 2023 19:28:46
%S 14,49,78,112,142,177,206,241,270,305,334,369,392,433,462,497,526,561,
%T 590,624,654,689,718,753,782,817,846,881,896,974,1009,1038,1073,1102,
%U 1136,1166,1201,1230,1265,1294,1329,1358,1393
%N Numbers k such that 1 and 6 occur juxtaposed in the base-8 representation of k but not of k-1.
%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n,8],{1,6}|{6,1}]>0,1,0],{n,1500}],{0,1}][[;;,2]] (* _Harvey P. Dale_, Aug 06 2023 *)
%Y Cf. A007094.
%K nonn,base
%O 1,1
%A _Clark Kimberling_