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A287587
Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks and between consecutive elements within the blocks are not larger than eight.
2
1, 1, 2, 5, 15, 52, 203, 877, 4140, 21147, 111834, 607467, 3364240, 18882202, 106908086, 608561226, 3475148745, 19883233772, 113936008776, 653440621531, 3749084054994, 21512691124035, 123438301231813, 708214150892273, 4062870450258864, 23305411737849083
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OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..1000
Wikipedia, Partition of a set
FORMULA
a(n) = A000110(n) for n <= 9.
CROSSREFS
Column k=8 of A287417.
Cf. A000110.
Sequence in context: A229225 A343669 A276725 * A287280 A287258 A287670
Adjacent sequences: A287584 A287585 A287586 * A287588 A287589 A287590
KEYWORD
nonn
AUTHOR
Alois P. Heinz, May 26 2017
STATUS
approved

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Last modified October 6 10:29 EDT 2024. Contains 376576 sequences.
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