1,1

Eric Weisstein's World of Mathematics, Woodall Number.

Sum of all 1-digit Woodall numbers is 8.

Sum of all 2-digit Woodall numbers is 86.

Sum of all 3-digit Woodall numbers is 1437.

Cf. A003261.

Sequence in context: A052659 A113376 A093103 this_sequence A035133 A045643 A030984

Adjacent sequences: A131809 A131810 A131811 this_sequence A131813 A131814 A131815

nonn,base

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Oct 23 2007