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A123794 Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1x6. +0
1
1, 24, 1861, 168661, 16902651, 1797062518, 199090941069 (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: A054777 A084224 A166788 this_sequence A006685 A002671 A003738

Adjacent sequences: A123791 A123792 A123793 this_sequence A123795 A123796 A123797

KEYWORD

nonn,hard

AUTHOR

Soren Eilers (eilers(AT)math.ku.dk), Oct 29 2006

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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