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Numbers n such that 7^n is the highest power of 7 dividing A240751(n).
3

%I #9 Jan 08 2021 10:53:27

%S 29,60,91,92,141,154,185,204,217,241,254,279,285,342,403,441,473,497,

%T 510,528,541,572,603,622,666,697,715,753,771,779,780,811,841,873,922,

%U 936,954,973,1022,1047,1053,1066,1091,1122,1234,1291,1347,1404,1422,1453,1496,1561

%N Numbers n such that 7^n is the highest power of 7 dividing A240751(n).

%H David A. Corneth, <a href="/A286005/b286005.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A005187, A240751, A286003, A286004, A286006-A286010.

%K nonn,easy

%O 1,1

%A _David A. Corneth_, May 01 2017