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Initial decimal digit of n^10.
6

%I #11 Jan 12 2024 13:58:52

%S 1,1,5,1,9,6,2,1,3,1,2,6,1,2,5,1,2,3,6,1,1,2,4,6,9,1,2,2,4,5,8,1,1,2,

%T 2,3,4,6,8,1,1,1,2,2,3,4,5,6,7,9,1,1,1,2,2,3,3,4,5,6,7,8,9,1,1,1,1,2,

%U 2,2,3,3,4,4,5,6,7,8,9,1,1,1,1,1,1,2,2,2,3,3,3,4,4,5,5,6,7,8,9,1,1,1,1

%N Initial decimal digit of n^10.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GelfandsQuestion.html">Gelfand's Question</a>

%e 1, 1024, 59049, 1048576, 9765625, 60466176, 282475249, 1073741824, 3486784401, 10000000000, ...

%t IntegerDigits[#][[1]]&/@(Range[120]^10) (* _Harvey P. Dale_, Jan 12 2024 *)

%Y Cf. A000027, A002993, A002994, A097408, A097409, A097410, A097411, A097412, A097413.

%K nonn,base,easy

%O 1,3

%A _Eric W. Weisstein_, Aug 16 2004

%E a(1) inserted by _Pontus von Brömssen_, Jul 02 2021