id:A057414 - OEIS Search Results

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Number of staircase polygons of area n with one (staircase polygon) hole on square lattice (not allowing rotations).

+0
2

1, 4, 18, 62, 205, 624, 1841, 5214, 14448, 39118, 104281, 273900, 711416, 1828950, 4663203, 11801056, 29677044, 74209404, 184655403, 457446252, 1128794669, 2775534900, 6802886782, 16625602146, 40524317635 (list; graph; listen)

	OFFSET	`8,2`
	LINKS	`I. Jensen, Table of n, a(n) for n = 8..113 (from link below)` `I. Jensen, More terms`
	CROSSREFS	`Sequence in context: A119044 A058851 A073373 this_sequence A165910 A100177 A083321` `Adjacent sequences: A057411 A057412 A057413 this_sequence A057415 A057416 A057417`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 30 2000`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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