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A055322
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Number of labeled trees with n nodes and 10 leaves.
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1
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11, 67452, 48907716, 14690700024, 2705763420360, 365758901988480, 40063975278687360, 3778762636904935680, 319426407028867057920, 24881574582258352358400, 1822046744492620226380800
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OFFSET
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11,1
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LINKS
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FORMULA
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a(n) = n! * (n-10)*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(135*n^7 - 8190*n^6 + 211050*n^5 - 2991660*n^4 + 25164055*n^3 - 125425110*n^2 + 342426104*n - 394205184) / 5056584744960000. - Vaclav Kotesovec, Jul 25 2014
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MATHEMATICA
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Table[n! * (n-10)*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(135*n^7 - 8190*n^6 + 211050*n^5 - 2991660*n^4 + 25164055*n^3 - 125425110*n^2 + 342426104*n - 394205184) / 5056584744960000, {n, 11, 25}] (* Vaclav Kotesovec, Jul 25 2014 *)
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PROG
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[Factorial(n)*(n-10)*(n-9)*(n-8)*(n-7)*(n-6)*(n-5)*(n-4)*(n-3)*(n-2)*(135*n^7 - 8190*n^6 + 211050*n^5 - 2991660*n^4 + 25164055*n^3 - 125425110*n^2 + 342426104*n - 394205184) / 5056584744960000: n in [11..25]]; // Vincenzo Librandi, Jul 25 2014
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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