Table of n, a(n) for n=1..25.
Joseph Myers, Polyomino tiling
Sequence in context: A209829 A209848 A093104 * A041116 A250322 A135797
Adjacent sequences: A120643 A120644 A120645 * A120647 A120648 A120649
N. J. A. Sloane, Aug 18 2006
Adjusted to offset 1 and a(24) and a(25) added by Joseph Myers, Nov 17 2010