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

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Showing entries 1-10 | older changes
Number of involutions avoiding 3421.
#17 by Sean A. Irvine at Wed Nov 05 15:22:25 EST 2025
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Wed Nov 05
15:22
OEIS Server: https://oeis.org/edit/global/3061
#16 by Andrew Howroyd at Sun Oct 05 12:43:09 EDT 2025
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#15 by Amiram Eldar at Sun Oct 05 12:41:17 EDT 2025
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#14 by Michel Marcus at Sun Oct 05 12:25:29 EDT 2025
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#13 by Michel Marcus at Sun Oct 05 12:25:23 EDT 2025
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#12 by T. D. Noe at Mon Oct 28 13:30:31 EDT 2013
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#11 by T. D. Noe at Sun Oct 27 21:28:47 EDT 2013
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#10 by T. D. Noe at Sun Oct 27 21:28:44 EDT 2013
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#9 by Cheyne Homberger at Sun Oct 27 21:20:25 EDT 2013
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#8 by Cheyne Homberger at Sun Oct 27 21:20:20 EDT 2013
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