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Search: id:A072855
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A072855 Number of permutations satisfying i-3<=p(i)<=i+5, i=1..n. +0
1
1, 2, 6, 24, 96, 384, 1374, 4718, 16275, 57749, 206756, 739780, 2637348, 9378840, 33318804, 118439044, 421340612, 1499388117, 5335199213, 18980987054, 67522942850, 240204885524, 854523535096, 3040023558788, 10815153542594 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A002524..A002529, A072827.

Sequence in context: A003450 A115220 A072854 this_sequence A084509 A070945 A053502

Adjacent sequences: A072852 A072853 A072854 this_sequence A072856 A072857 A072858

KEYWORD

nonn

AUTHOR

Vladimir Baltic (baltic(AT)galeb.etf.bg.ac.yu), Jul 25 2002

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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