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A132010
Sum of all n-digit Wedderburn-Etherington numbers.
1
14, 178, 1641, 7029, 91547, 1097616, 13625900, 65706895, 957913707, 12593013388, 62846894419, 950426695414, 12909147207227, 65758514653252, 1017453546233427, 14114398597966262, 72885096190611801, 1145485384777148168, 5953288248795292682, 94266855261167987840
OFFSET
1,1
LINKS
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
KEYWORD
nonn,base
AUTHOR
Parthasarathy Nambi, Oct 29 2007
EXTENSIONS
a(11)-a(20) from Alois P. Heinz, Sep 07 2017
STATUS
approved