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A053173 Number of 3 X 3 integer matrices with elements in the range [ -n,n ] which represent a four-fold rotation. Also the sequence for the corresponding four-fold rotoinversions. 5
174, 2694, 8814, 23310, 64782, 105678, 171006, 259446, 368334, 599022 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
A053170 = 2 * (1 + A053171 + A053172 + this sequence + A053174).
Sequence in context: A185534 A185526 A248458 * A185525 A224433 A213866
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)