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A090380 I have a list of rectangles 1, 2, 3, 4, 5, 6 (for the above examples). I am using a recursion program to perform a branch and bound method of the knapsack problem (actually the 2D cutting stock problem). The sequence is the number of iterations of the subprogram that my program produced. The rectangle is placed and then two options are produced. Each option has two different rectangles in which the next target rectangle can be put in. Thus there are 4 calls to the subprogram for each rectangle, yet each rectangle can also be turned sideways. +0
1
1, 17, 265, 4737, 99721, 2934889 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A048446 A001282 A135214 this_sequence A142898 A097830 A131865

Adjacent sequences: A090377 A090378 A090379 this_sequence A090381 A090382 A090383

KEYWORD

nonn,uned

AUTHOR

Stuart Reed (stu96art(AT)yahoo.com), Jan 29 2004

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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