id:A057782 - OEIS Search Results

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Building block is trapezoid formed from 3 equilateral triangles; sequence gives number of pieces (polytraps) that can be formed from n such trapezoids.

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1, 9, 94, 1552, 27285, 509805 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`Computed by Brendan Owen.`
	LINKS	`Andrew Clarke, Other Polyforms`
	CROSSREFS	`Cf. A000228, A000105, A058883.` `Sequence in context: A034992 A048359 A099297 this_sequence A115071 A000562 A098450` `Adjacent sequences: A057779 A057780 A057781 this_sequence A057783 A057784 A057785`
	KEYWORD	`nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 29 2000`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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