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A345464 Second column of A345461 - Number of distinct permutations after one step of the "optimist" sorting algorithm. 1
1, 1, 6, 38, 232, 1607, 12984, 117513, 1182540, 13060248, 157314056, 2051314949 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

LINKS

Table of n, a(n) for n=2..13.

CROSSREFS

Cf. A345453, A345461.

Cf. A000166 (equivalent for Eulerian numbers).

Cf. A180191 (equivalent for Stirling numbers of the first kind).

Sequence in context: A026296 A037499 A037676 * A180030 A135030 A217633

Adjacent sequences:  A345461 A345462 A345463 * A345465 A345466 A345467

KEYWORD

nonn,more

AUTHOR

Olivier Gérard, Jun 20 2021

EXTENSIONS

a(11)-a(13) from Pontus von Brömssen, Jun 29 2021

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)