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 A104643 Number of arrangements that can be formed by taking n distinct things out of 25. 1
 1, 25, 600, 13800, 303600, 6375600, 127512000, 2422728000, 43609104000, 741354768000, 11861676288000, 177925144320000, 2490952020480000, 32382376266240000, 388588515194880000, 4274473667143680000, 42744736671436800000, 384702630042931200000, 3077621040343449600000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS G. C. Greubel, Table of n, a(n) for n = 0..25 FORMULA a(n) = 25! / (25 - n)!. EXAMPLE a(3) = 25! / (25 - 3)! = 13800. MATHEMATICA Table[n!*Binomial[25, n], {n, 0, 25}] (* G. C. Greubel, Sep 01 2018 *) PROG (PARI) a(n) = 25! / (25 - n)! ; \\ Michel Marcus, Aug 12 2013 (Magma) [Factorial(n)*Binomial(25, n): n in [0..25]] // G. C. Greubel, Sep 01 2018 CROSSREFS Sequence in context: A264220 A228827 A159661 * A162811 A163175 A163525 Adjacent sequences: A104640 A104641 A104642 * A104644 A104645 A104646 KEYWORD nonn,fini AUTHOR Prashant Garg (prashant.garg1988(AT)yahoo.com), Feb 04 2008 STATUS approved

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Last modified June 17 23:07 EDT 2024. Contains 373467 sequences. (Running on oeis4.)