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a(n) = A127858(n)^2.
6

%I #11 Jul 29 2023 05:00:50

%S 36,4356,617796,88849476,12792967236,1842170994756,265272427798596,

%T 38199227257643076,5500688696956346436,792099172023982809156,

%U 114062280767400751587396,16424968430457074953412676

%N a(n) = A127858(n)^2.

%C In base 12 the sequence is 30, 2630, 259630, 25909630, 2590409630, 259037409630, 259036X7409630, 259036X1X7409630, 259036X151X7409630, 259036X14851X7409630, where X is 10 and E is 11.

%F a(n) = (5*(12^n - 1)/11 + 1)^2 = A127861(n) - (12^(2*n) - 1)/11.. - _Max Alekseyev_, Jul 27 2023

%e a(1) = A127858(1)^2 = 6^2 = 36.

%Y Cf. A117755, A127856, A127857, A127858, A127859, A127861, A192544.

%K nonn,base

%O 1,1

%A _Walter Kehowski_, Feb 04 2007

%E Edited by _Max Alekseyev_, Jul 27 2023