id:A123824 - OEIS Search Results

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Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 2x3.

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1, 16, 697, 34958, 1947321, 114675898, 7026150623, 443114008903 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`M. Abrahamsen and S. Eilers, Efficient counting of LEGO buildings, in preparation` `B. Durhuus and S. Eilers, On the entropy of LEGO, arXiv:math.CO/0504039`
	LINKS	`S. Eilers, LEGO counts`
	CROSSREFS	`Sequence in context: A014733 A053907 A036513 this_sequence A062206 A086701 A159375` `Adjacent sequences: A123821 A123822 A123823 this_sequence A123825 A123826 A123827`
	KEYWORD	`nonn,hard`
	AUTHOR	`Soren Eilers (eilers(AT)math.ku.dk), Oct 29 2006`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.