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A270579
The number of sets of parallel planes into which the planes defined in A270578 fall.
1
13, 145, 1237, 4813, 19225, 42901, 119725, 233065, 475609
OFFSET
2,1
EXAMPLE
The 20 planes defined by the points of the 2 X 2 X 2 grid fall into 13 families of parallel planes: 3 parallel to the faces, 4 perpendicular to the space diagonals and 6 which are the planes defined by an edge and its opposite edge. So a(2)=13.
CROSSREFS
Sequence in context: A065411 A354466 A038492 * A297223 A199023 A152585
KEYWORD
nonn,more
AUTHOR
Clive Tooth, Mar 19 2016
STATUS
approved