1,1

Table of n, a(n) for n=1..5.

E.W. Weisstein, Cylinder Cutting

Sum of all 1-digit cake numbers is 15.

Sum of all 2-digit cake numbers is 240.

Sum of all 3-digit cake numbers is 4780.

Cf. A000125.

Sequence in context: A220821 A090411 A154806 * A059760 A059615 A215855

Adjacent sequences: A133196 A133197 A133198 * A133200 A133201 A133202

nonn,base

Parthasarathy Nambi, Oct 10 2007

approved