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A027393
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Number of labeled servers of dimension 6.
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0
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1, 6, 51, 526, 6261, 83670, 1232335, 19742190, 340632825, 6281417350, 123031916475, 2546554829550, 55463580338125, 1266494279875350, 30225798507297975, 751874518736980750, 19447447965603896625
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| R. Donaghey, Binomial self-inverse sequences and tangent coefficients, J. Combin. Theory, Series A, 21 (1976), 155-163.
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FORMULA
| E.g.f.: Exp[ (x*(360 + 450*x + 400*x^2 + 225*x^3 + 72*x^4 + 10*x^5))/60 ]
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CROSSREFS
| Sequence in context: A180901 A199685 A002295 * A124565 A057817 A000405
Adjacent sequences: A027390 A027391 A027392 * A027394 A027395 A027396
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KEYWORD
| nonn
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AUTHOR
| Olivier Gerard (olivier.gerard(AT)gmail.com)
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