A373994 - OEIS

%I #23 Jun 27 2024 03:53:52

%S 1,10,18,19,27,28,45,37,46,64,64,81,82,82,91,100,100,118,117,126,136,

%T 136,154,154,163,163,172,181,181,190,199,208,217,226,235,235,243,244,

%U 261,262,280,280,280,289,298,298,307,325,325,325,334,352,352,361,370

%N a(n) is the largest digit sum of all n-digit sixth powers.

%e a(6) = 28 because 28 is the largest digital sum encountered among all 6-digit sixth powers (117649, 262144, 531441).

%t Table[Max@Map[Total@IntegerDigits[#^6] &, Range[Ceiling[10^((n - 1)/6)], Floor[(10^n-1)^(1/6)]]], {n, 42}]

%Y Cf. A001014, A348300, A373727, A373914, A374025.

%K nonn,base

%O 1,2

%A _Zhining Yang_, Jun 26 2024