A132010 Sum of all n-digit Wedderburn-Etherington numbers.

14, 178, 1641, 7029, 91547, 1097616, 13625900, 65706895, 957913707, 12593013388, 62846894419, 950426695414, 12909147207227, 65758514653252, 1017453546233427, 14114398597966262, 72885096190611801, 1145485384777148168, 5953288248795292682, 94266855261167987840

Offset

1,1

Links

Alois P. Heinz, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Weakly Binary Tree.

Example

Sum of all 1-digit Wedderburn-Etherington numbers is 14.
Sum of all 2-digit Wedderburn-Etherington numbers is 178.
Sum of all 3-digit Wedderburn-Etherington numbers is 1641.

Crossrefs

Cf. A001190.

Sequence in context: A177072 A274565 A125471 * A126866 A230055 A133286

Adjacent sequences: A132007 A132008 A132009 * A132011 A132012 A132013

Keyword

nonn,base

Author

Parthasarathy Nambi, Oct 29 2007

Extensions

a(11)-a(20) from Alois P. Heinz, Sep 07 2017

Status

approved