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A060677 Number of linear n-celled polyominoes, those with the property that a line can be drawn that intersects the interior of every cell. 0
1, 1, 2, 3, 5, 8, 11, 17, 22, 31, 38, 52 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..12.

E. J. Friedman, Math. Magic

CROSSREFS

Sequence in context: A238591 A039847 A046938 * A131787 A091498 A227562

Adjacent sequences:  A060674 A060675 A060676 * A060678 A060679 A060680

KEYWORD

hard,nice,nonn

AUTHOR

Jason Earls, Apr 18 2001

STATUS

approved

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Last modified April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)