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

0,4

Links

Table of n, a(n) for n=0..12.

Erich Friedman, Illustration of initial terms

Example

See A094170 for example of similar sequence.

Crossrefs

Cf. A094170, A094171.

Sequence in context: A297455 A256178 A372904 * A296723 A145613 A212786

Adjacent sequences: A094169 A094170 A094171 * A094173 A094174 A094175

Keyword

nonn

Author

Jon Wild, May 07 2004

Extensions

Corrected and extended by Jon Wild, May 11 2004

Status

approved