%I #24 Nov 08 2025 09:55:22

%S 1,23,359,4987,63869,778581,9185685,105854997,1198530315,13385107495,

%T 147849112851,1618471517571,17584519050293,189843229312125,

%U 2038412681323151,21783930695524161,231837345778656901,2458353846022087693,25983342342576999643,273831462249331777401,2878295010728933569971

%N Sum of number of unitary divisors (A034444) from 1 to 10^n.

%H Henri Lifchitz, <a href="/A180361/b180361.txt">Table of n, a(n) for n = 0..28</a>

%F a(n) = A064608(10^n).

%Y Cf. A034444, A064608.

%K nonn

%O 0,2

%A _Andrew Lelechenko_, Jan 19 2011

%E a(3) corrected from 4983 to 4987 by _Henri Lifchitz_, Nov 07 2017

%E a(17)-a(23) from _Henri Lifchitz_, Nov 07 2017