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The subfactorials are the numbers of ways to arrange the numbers 1 to n in a group of slots numbered 1 through n so that no number is in the slot with that number. The subfactorials of the integers 1 through 10 are 0, 1, 2, 9, 44, 265, 1854, 14833, 133496, and 1334961. I think it's good to know a few properties subfactorials must have:
Any other known properties?? Georgia guy ( talk) 15:38, 30 September 2022 (UTC)
Mathematics desk | ||
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< September 29 | << Aug | September | Oct >> | Current desk > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
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The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
The subfactorials are the numbers of ways to arrange the numbers 1 to n in a group of slots numbered 1 through n so that no number is in the slot with that number. The subfactorials of the integers 1 through 10 are 0, 1, 2, 9, 44, 265, 1854, 14833, 133496, and 1334961. I think it's good to know a few properties subfactorials must have:
Any other known properties?? Georgia guy ( talk) 15:38, 30 September 2022 (UTC)