A094172 Number of quasi-pentominoes in an n X n bounding box.

0, 0, 0, 21, 390, 3427, 18380, 73413, 237459, 659774, 1629116, 3666785, 7651680

Offset: 0

Author

Jon Wild, May 07 2004

Keywords

• nonn

Examples

			See A094170 for example of similar sequence.
		

Links

• Erich Friedman, Illustration of initial terms

Crossrefs

Cf. A094170, A094171.

Extensions

Corrected and extended by Jon Wild, May 11 2004