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A224297 Number of permutations of length n containing exactly 1 occurrence of 12345 and 1 occurrence of 12354. 0
0, 0, 0, 0, 0, 0, 2, 56, 984, 14004, 177140, 2083560, 23374060, 254007320, 2700941710, 28293706782, 293369952474, 3020937207142, 30967869359950, 316581042622444, 3231631411510936, 32971319565628464, 336462340456201700 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,7
LINKS
MAPLE
# Programs can be obtained from author's personal website.
CROSSREFS
Sequence in context: A056046 A080313 A080268 * A193476 A193475 A246001
KEYWORD
nonn
AUTHOR
Brian Nakamura, Apr 03 2013
STATUS
approved

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Last modified March 28 16:00 EDT 2024. Contains 371254 sequences. (Running on oeis4.)