A180361 Sum of number of unitary divisors (A034444) from 1 to 10^n.

1, 23, 359, 4987, 63869, 778581, 9185685, 105854997, 1198530315, 13385107495, 147849112851, 1618471517571, 17584519050293, 189843229312125, 2038412681323151, 21783930695524161, 231837345778656901

Offset: 0

Author

Andrew Lelechenko, Jan 19 2011

Keywords

• nonn

Links

• Henri Lifchitz, Table of n, a(n) for n = 0..23

Crossrefs

Cf. A034444, A064608

Formula

a(n)=A064608(10^n)

Extensions

a(3) corrected from 4983 to 4987 by Henri Lifchitz, Nov 07 2017

a(17)-a(23) from Henri Lifchitz, Nov 07 2017