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⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Showing entries 1-10 | older changes
Number of blocks of size >= four in all set partitions of n.
#18 by Sean A. Irvine at Fri Mar 13 19:23:16 EDT 2026
STATUS
#17 by Sean A. Irvine at Fri Mar 13 19:23:14 EDT 2026
MAPLE
STATUS
#16 by Joerg Arndt at Sun Jun 26 05:52:15 EDT 2022
STATUS
#15 by Vaclav Kotesovec at Sun Jun 26 04:24:56 EDT 2022
STATUS
#14 by Ilya Gutkovskiy at Sat Jun 25 03:54:05 EDT 2022
STATUS
#13 by Ilya Gutkovskiy at Sat Jun 25 03:53:12 EDT 2022
FORMULA
STATUS
#12 by Alois P. Heinz at Thu Jan 06 14:53:19 EST 2022
STATUS
#11 by Alois P. Heinz at Thu Jan 06 14:53:17 EST 2022
MAPLE
STATUS
#10 by Bruno Berselli at Mon May 28 03:26:06 EDT 2018
STATUS
#9 by Michel Marcus at Mon May 28 01:47:54 EDT 2018
STATUS